Hyundai engine oil consumption

2921 posts · Joined 2018. #9 · Jan 7, 2022. There was a recall (9/20/2017) for bearing wear in the 3.3 engine that could result in an engine stall, similar to the 2.4 and 2.0T recalls/updates, but some of these 4 cyl engines also experience very high oil consumption.

Hyundai engine oil consumption. The engine oil consumption problem is covered under warranty, follow the dealer suggestions for a proper diagnosis and it will get repaired. ... Now I will agree with you on Hyundai engines theta ll to be exact which are in sonatas I have 3 and out of the 3 I had a total of 5 engines replaced but never a issue with my palisade and I have 62k ...

Hyundai Motor Company, Ltd. et al. or the clinically impersonal file name of 8:22-cv-00448. There are a wide variety of Hyundai and Kia models named in the suit, some going back so far as 2009 ...

I think I read somewhere that Hyundai does an oil consumption test and they go by a certain amount of miles between having to add oil. But I can’t find where I …Hyundai Models. Getz Forum ... Oil consumption. Jump to Latest Follow 3K views 5 replies 3 participants last post by John51 Feb 16, 2020. J. John51 Discussion starter 8 posts ...Kia has very specific oil consumption tests and considers one quart of oil used in 1,000 miles or more normal. Based on Kia's criteria for oil consumption, the engine is operating as designed ...Hyundai Models. Getz Forum ... Oil consumption. Jump to Latest Follow 3K views 5 replies 3 participants last post by John51 Feb 16, 2020. J. John51 Discussion starter 8 posts ...The 2013 Hyundai Sonata has 13 problems reported for excessive oil consumption. Average failure mileage is 87,350 miles.The oil consumption comes from out of round cylinders and worn rings, but the engine in question, the problem is a dead cylinder which indicates that there may be a problem with valves, gasket, or maybe just a spark plug, but the lifetime warranty is only for a clogged oil pump that stops lubrication and destroys the engine. Hyundai/Kia have ...629 posts · Joined 2023. #2 · Jul 12, 2023. I am hoping the new Smartstream 2.5L turbo engine in the GT does not have the same problems that the older Hyundai / Kia 'Theta II' 4-cyl engines had. High oil consumption was just one of many problems the ill-fated 'Theta II' engines had ... and a class action lawsuit followed.

"Oil consumption is normal on all engines," BMW spokesman Hector Arellano-Belloc said in an e-mailed statement. "BMW vehicles have long intervals between oil changes (10,000 miles).2015 2.0t burning oil smell at idle and oil consumption. My 15 turbo sonata limited now has 145,000 miles on it and it started consuming about 0.5 qt of oil every 1000 miles and when the engine is fully warmed up and the car's heat is on it smells like burning oil in the cabin, but only when the car is at a stop (and not when in motion).I own a 2014 SantaFe Limited 2.0 Turbo. For a past year or so its been using a lot of oil. 1litre per 1000km (600miles). The local dealer did a consumption test and claims that consumption is within the Hyundai tolerances. I have 15000km until my extra warranty for the Hyundai motor issue runs out.You may have to go to another dealer to get proper treatment. The Theta II engine in this car has a safety recall and a class action lawsuit. The engine can seize and stall on the road; increased oil consumption is one symptom of impending failure. Check to see if the 953 recall has been done. If not, get it done.53,000 miles. 2017 Hyundai Santa Fe Sport started using oil Sept 8, 2021. Reported to Paramount, Manager stated Hyundai manufacture said it was “NORMAL†for a car to use 1 quart of oil ...Conclusion. Excessive oil consumption in Hyundai vehicles is a significant issue that can impact the performance, safety, and lifespan of the vehicle. It can be caused by various factors, including worn seals or gaskets, poor quality oil, worn piston rings, high oil pressure, and aging of the engine.Within several years came the 2.4 Theta II GDI engine utilizing gasoline direct injection (GDI). Unfortunately, neither engine has earned a good reputation for reliability. Common Hyundai 2.4 engine problems include engine failure, oil consumption, carbon deposits, and oil leaks.9 posts · Joined 2016. #3 · Oct 6, 2020. I own a 2014 SantaFe Limited 2.0 Turbo. For a past year or so its been using a lot of oil. 1litre per 1000km (600miles). The local dealer did a consumption test and claims that consumption is within the Hyundai tolerances.

2016 and Prior GM Passenger Cars and Gasoline-Powered Light Duty Trucks Under 8500 LB GVW. This Bulletin also applies to any of the above models that may be Export vehicles. This Bulletin has been revised to add the 2015-2016 Model Years. Please discard Corporate Bulletin Number 01-06-01-011H. All engines require oil to lubricate and protect ...Walmart had me sign a waiver at 11700 miles because the engine oil was below the dipstick (22' Santa Cruz 2.5L Turbo). A dealer changed the oil at ~5070 mikes. ... A different Hyundai dealer conducted an oil consumption test and my vehicle had no loss of oil after about 2,500 miles. Looks like the first dealer did not put in enough oil at my ...The 2017 hyundai sonata has been affected by an oil consumption recall. Owners can take their vehicle to a hyundai dealer for free inspections and repairs. Hyundai motor co. has required a recall for almost 43,000 2017 hyundai sonata sedans due to a potential defect that could result in engine damage prompting an oil consumption recall …Introducing the Hyundai Oil Consumption Test Worksheet - your ultimate tool for tracking and analyzing engine oil usage in cars with high mileage. This revolutionary worksheet is designed to simplify the process, ensuring that you stay on top of your high mileage vehicle's maintenance needs and optimize mpg.

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Used engine oil is a hazardous material that can cause serious environmental damage if not disposed of properly. To help ensure the safety of our environment, it is important to un...Jan 2, 2024. Messages. 1. Jan 2, 2024. #14. Any update on this @robo339, I have exact similar issue with my 2017 Tucson 2L. With diesel like sound, and gas consumption a bit up. I went to the dealer, after getting engine light...They changed the ignition coils, and but this seems to have fixed the issue temporarily.A Hyundai’s “check engine” light comes on when the onboard diagnostic system detects a problem that can effect the way the engine runs. The “check engine” light has a code associat...11 posts · Joined 2022. #19 · Jul 19, 2022. If the oil is being sucked into the intake, it will eventually cause engine failure. The valves are not cleaned by fuel in a direct injection engine, so they get dirty with deposits, cause detonation, and eventually burnt valves, requiring a top end rebuild.

In other parts of the world the same engine is allowed to use a range of viscosities depending on climate, typically up to 10w-40 or even 20w-50. If engines were so sensitive to oil viscosity as some suggest there would be trouble with cold starts, because 0w-16 oil at room temperature is thicker than 20w-50 at operating temperature.30 posts · Joined 2021. #1 · Apr 21, 2024. 2009 SE 3.3L. 186k miles (300k Km) Over the past few months, I've noticed a dramatic increase in oil consumption with no signs of where it's going. No leaks, no smoke. No blow back under the vehicle just gone. I change the oil fairly regularly and had gotten used to having to add a qt btwn changes.ChasingSunrise444. ADMIN MOD. Oil consumption support refused on 2018 Hyundai Sonata. I bought a brand new 2018 Hyundai Sonata back in 2017 and it's now burning over 1qrt of oil for every 1,000 miles. I have 117,000 miles on it. Hyundai said they can't help because the warranty ended at 100,000 miles. While yes the bumper to bumper warranty ...HYUNDAI SANTA FE INCREASED OIL CONSUMPTION FIX, BURNING USING ENGINE OIL FIXIf you have Hyundai Santa Fe and you have increased oil consumption or your Hyund...Consult Hyundai Heavy Industries-Marine Engine's entire HYUNDAY HiMSEN ENGINE catalogue on DirectIndustry. Page: 1/83. ... the diesel fuel and heavy fuel oil of the viscosity of upto 700cSt at 50 °C is acceptable. Economical and Ecological Engine with low fuel consumption, NOx emission, and Smoke, etc. , which is based on the below specific ...Ask Someone Who Owns One. * All fields required. The 2016 Hyundai Elantra has 1 problems reported for excessive oil consumption. Average failure mileage is 12,000 miles.Hyundai Sonata has a known issue of burning engine oil and increased oil consumption, which has resulted in over 300 mechanical repair videos on the topic. 💸 Neglecting to replace a serviceable part in a Hyundai can lead to increased oil consumption and the need for a new engine, costing drivers more money in the long run.Hyundai Motor America Hyundai Motor America P.O. Box 20839 Fountain Valley, CA 92728-9937 IMPORTANT SAFETY RECALL (INTERIM NOTICE) 2019 – 2020 Elantra, 2019 – 2021 Kona, 2019 – 2021 Veloster Piston Oil Ring This is an important Safety Recall. • We are currently preparing the remedy. We will notify you when the remedy is ready.

Oh, and they’re also super easy to steal, too. Hyundai and Kia’s modern engine issues date back to 2015, and the 2011 and 2012 model year Sonata. A class action lawsuit in May of 2015 alleged the Theta engine in the Sonata was defective. In particular, it was claimed the 2.4-liter version of the Theta II engine suffered from connecting rod ...

Aug 22, 2023 ... Yes another 1000 miles driven in the Palisade, means it's time for another oil level consumption check. The saga is getting weird now.. and ...Apr 26, 2023 · 28 posts · Joined 2021. #1 · Apr 26, 2023. Service agent at the Hyundai dealership offered me an oil consumption test for the 2015 Sonata which I bought there new, and is covered under the engine litigation, and runs good but burns about 6 quarts of oil every thousand miles. I sit through the appointment over two hours and the agent comes out ... A $200 million Hyundai and Kia settlement compensates vehicle owners whose cars were stolen as a result of lackluster anti-theft features. By clicking "TRY IT", I agree to receive ...A class action lawsuit was filed in California for the excessive oil consumption in Hyundai and Kia. The dealerships and Hyundai have been denying repairs to people who have had engines fail because of this. My vehicle has been at the dealership since February and I've been denied an engine replacement 3 times with multiple BS excuses.To maintain optimal engine health, it is important to follow the manufacturer's recommended oil change intervals using high mileage full synthetic Castrol motor oil for your 2016 Hyundai Elantra. Generally, an oil change is advised every 7,500 miles or every 12 months, whichever comes first.Ok to use 20w-50 oil to slow down oil consumption?? Upon advice of others I switched form conventional 5w-20 to synthetic blend 5w-20, then 5w-30, then FULL synthetic 10w-30 and my 2012 Sonata 2.4l with 117k miles is I still using a quart of oil every 600-70 miles. (already have the infamous "orange dipstick" from the dealership. Spoke with the ...Customers who have any concern with their Hyundai vehicle may contact the Hyundai Customer Care Center at (855) 671-3059 or . Hyundai Engine Recall and Software Update Information Hyundai has issued engine-related recalls and a software update for some of its models. Click the VIN validation button below to find out if your vehicle is affected.There are many possible ways to reduce oil consumption. 1. Use an engine flush like BG EPR 2. Use a quality syn oil 3. Go up a grade in oil 30-40 weight 4. Use a combustion chamber cleaner like BG 44k ... Hyundai Forum is a community for all Hyundai Owners to talk and learn all about their favorite subject: Hyundai cars from the Sonata to the ...Class action claims engine defect burns excessive oil. IMPORTANT UPDATE - CLASS CASE DISMISSED. A class action lawsuit on behalf of current and former purchasers and lessees of the Hyundai and Kia models listed below, which was originally filed in the United States District Court for the Central District of California on March 23, 2022, has been voluntarily dismissed by the plaintiffs.

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Jan 2, 2024. Messages. 1. Jan 2, 2024. #14. Any update on this @robo339, I have exact similar issue with my 2017 Tucson 2L. With diesel like sound, and gas consumption a bit up. I went to the dealer, after getting engine light...They changed the ignition coils, and but this seems to have fixed the issue temporarily.Mar 29, 2022 · The following Hyundai-Kia vehicles are affected by the oil consumption lawsuit: 2012-2020 Hyundai Elantra. 2009–2018 Hyundai Genesis Coupe. 2019-2021 Hyundai Kona. 2020-2021 Hyundai Palisade. 2010-2012 and 2015-2021 Hyundai Santa Fe. 2009-2010 and 2015-2021 Hyundai Sonata. 2011–2021 Hyundai Sonata Hybrid. 2010-2013 and 2015-2021 Hyundai Tucson. If not, then that negligence increases consumption issues. Also, some engines don't like the oil brand we feed them continuously. Try another brand like Castrol or Valvoline and try a thicker viscosity like 5w30 / 10w30. ... My mechanic said the oil usage is common with Hyundai engines. However he said it usually happens at around 60K. …Earlier oil consumption issues were common to that Theta engine family going back well over a decade. This suit however alleges that many engine types are prone to the issues. Jalopnik , based on the list of implicated vehicles, adds that Hyundai/ Kia 's Nu, Gamma, Lambda, and Kappa engines are also involved.My 2013 V6 blew due to oil deprivation. I still had over 1000 miles left til I needed an oil change to. At the time I didn't know these cars guzzled so much oil. Cost me 4800 for a complete rebuild. Wonder if any compensation could come of this The 2013 Hyundai Sonata has 13 problems reported for excessive oil consumption. Average failure mileage is 87,350 miles. Apr 14, 2024 · Hyundai Santa Fe: Complete engines range from $2,000 to $3,500, with used engines for the Santa Fe averaging $1,680 – $3,200 and turbocharged versions between $2,700 – $4,700. 2016 Hyundai Tucson: Used engines range between $4,000 and $6,000, with total replacement costs around $10,000. General Hyundai Models: Engine replacement costs ... Sep 27, 2023 · I did services every 9000 miles / 1 year at Hyundai dealer as stated in manual and before there were no problems with oil consumption. There were no signs that engine is burning oil. Now after 2500 miles driven the oil level is about 1/4 of inch below full. If you bought or leased a 2011-2019 model year Hyundai Sonata, 2013-2019 Hyundai Santa Fe Sport, or a 2014-2015 or 2018-2019 Hyundai Tucson equipped with a 2.0L or 2.4L Gasoline Direct Injection engine you may benefit from a class action settlement. A federal court has authorized this notice. This is not a solicitation from a lawyer. ….

2020 pallisade burning oil. My car oil light has been going on for the past few months. I had taken it in for an oil change and at 100 miles my oil light went on. My husband checked the oil and it was 4 quarts low. We called the service department to let them know. We thought at first the tech didn't put enough oil and that's why this happened.Shortly after the engine went. Get dealership to do an oil consumption test. You will need to bring it in every x many miles to add oil and measure oil burned. It helps as evidence for when engine dies and needs replacing under warranty. Yes for your year and cat unfortunately.After two long years, Hyundai finally replaced the engine in my 2018 Sonata.It took multiple dealer visits, poking Hyundai corporate, thousands of miles of driving and hundreds of gallons of oil.The spec per Hyundai TSB 21-EM-003H is one quart per 1,000+ miles is normal operation. If the calculation works out to less than 1,000 if fails inspection. Miles driven ÷ oil added to full = consumption rate. So for example 1,000 miles driven, added 1.1 quarts to return oil level to full line would be a 909 miles per quart consumption rate.Walmart had me sign a waiver at 11700 miles because the engine oil was below the dipstick (22' Santa Cruz 2.5L Turbo). A dealer changed the oil at ~5070 mikes. ... A different Hyundai dealer conducted an oil consumption test and my vehicle had no loss of oil after about 2,500 miles. Looks like the first dealer did not put in enough oil at my ...3 Common Problems: Excessive oil consumption. 4 Common Problems: Engine shaking during acceleration. 4.1 Vibrations felt from the engine during acceleration. 4.2 Possible causes for engine shaking in the 2017 Hyundai Tucson. 4.3 Impact of engine shaking on vehicle performance and safety.Low tension rings and high pressure gdi can cause lots of blow by and contaminates in the oil. Especially if the rings are stick from carbon build up Some things you can try to improve excessive oil consumption. 1. Change the PCV valve 2. Use an engine oil flush 3. Run a high quality motor oil 4. Run a higher grade oil (30-40 weight) 5. Use a ...2 posts · Joined 2022. #1 · Aug 22, 2022. After months of back and forth, Hyundai has offered to cover 80% of the cost of replacing my 2013 Santa Fe 6 cylinder engine due to excessive oil consumption. The dealer just quoted me an "conservative" estimate of $11,000 for a short block and related parts which seems high (my 20% would be as much ...For all Hyundai owners who bought a lemon with a bad motor. Ours started burning oil at 60,000 miles and keeps getting worse. Hyundai engine oil consumption, In 2021, hyundai issued a recall for santa fe suvs due to oil consumption issues. Specifically, some models from 2013-2014 are impacted. The risk of this problem is that it could cause engine failure while driving, and in a worst-case scenario, lead to a crash. If you are an owner of an affected santa fe, you should receive a notification from ..., The hyundai oil consumption test is a procedure used to determine oil consumption levels in hyundai vehicles. This test is necessary to ensure the longevity and performance of your car. The test works by measuring the amount of oil used by the engine over a set period. During the test, the vehicle is driven under specific conditions and then ..., In 2021, hyundai issued a recall for santa fe suvs due to oil consumption issues. Specifically, some models from 2013-2014 are impacted. The risk of this problem is that it could cause engine failure while driving, and in a worst-case scenario, lead to a crash. If you are an owner of an affected santa fe, you should receive a notification from ..., Engine oil is responsible for lubrication, cooling, and operation of hydraulic components of the engine. Engine oil is expected to be consumed in normally operating engines. …, 2921 posts · Joined 2018. #9 · Jan 7, 2022. There was a recall (9/20/2017) for bearing wear in the 3.3 engine that could result in an engine stall, similar to the 2.4 and 2.0T recalls/updates, but some of these 4 cyl engines also experience very high oil consumption., Jun 16, 2017 ... Oil Consumption in Modern Cars: The Truth Does your car have a drinking problem? A destructive relationship with engine oil?, Normal service: Change at 7,500 miles. Severe service: Change oil at 3,750 miles. Check for leaks. More than 1 Qt/5,000 mile usage is not normal. Have dealer check it before warranty runs out. New warranty: 10 years or 100,000 miles. Used warranty: 6 years or 60,000 miles., Cycle engine with little blips of the key as not to shoot the fluid out the plug hole. Let sit for 2 hours. Use the key to use the starter to cycle the engine for 5 seconds. Add another 3/4 shot glass full of seafoam spray into the plug hole, let sit for another 2 hours. Cycle again, by cranking for 5 seconds 4 times., It's burning it. If it's burning less than 1 quart every thousand miles then Hyundai won't replace the engine. The process to prove it's burning oil is long and requires 4 separate trips to the dealer. Just top off the oil, keep your mouth shut and trade it in for a better brand. 7., I have a 2013 Sonata with 127,000 miles that I purchased from an individual. It seems it has begun using oil at an alarming rate (1 qt/800 miles). It appears this engine is out of warranty and the recall only applies to connector rod bearings, not oil consumption. I have changed the PCV Valve and am considering changing to a heavier weight oil ..., 32 posts · Joined 2022. #1 · Sep 8, 2023. I bought a 2023 Tucson with 2.5L engine. Love the car. Then I saw issues including a CA suit about oil consumption on Hyundai engines that covered a wide range of engines. Then I thought it was limited to older models and they had "fixed" the issue in the 2022 or 23 year., Oil consumption in modern passenger car engines is usually less than 0.05 %; the maximum permissible oil consumption stands at 0.5 % (all percentage values relate to actual fuel consumption). Normal oil consumption may be higher for older engine types, stationary engines and under special operating conditions. A decision with regard to the need ..., Earlier oil consumption issues were common to that Theta engine family going back well over a decade. This suit however alleges that many engine types are prone to the issues. Jalopnik , based on the list of implicated vehicles, adds that Hyundai/ Kia ’s Nu, Gamma, Lambda, and Kappa engines are also involved., Some common Northstar engine problems include head gasket failures, excessive oil consumption, knocking or pinging, oil leaks and no oil pressure. Although most of these issues are..., 2 posts · Joined 2022. #1 · Aug 22, 2022. After months of back and forth, Hyundai has offered to cover 80% of the cost of replacing my 2013 Santa Fe 6 cylinder engine due to excessive oil consumption. The dealer just quoted me an "conservative" estimate of $11,000 for a short block and related parts which seems high (my 20% would …, Roughly .75 quarts every…. Consuming/burning excessive oil. Roughly .75 quarts every 1000 miles. Is there a repair for the engine to correct this or is the engine replaced. I have a 2016 Elantra GT., Jun 18, 2022 · 2.0 GDI oil consumption. Just purchased my first hyundai being a 2016 tuscon petrol 2.0 GDI. Vehicle only has 62,500 ks and always serviced at hyundai every 10,000ks and generally appears to be pretty well maintained. Vehicle seems to drive fine with no unusual sounds however I found the oil to be very low. I added 1 litre of oil this morning ... , Recently car started burning engine oil more than regular. Took it to service, they did preventive maintenance and asked me to bring car in for every 1000 Kms until next service to do oil consumption test. ... Service advisor said most probably Hyundai will reject as the consumption is below 1 litre every time and I need to pay out of my pocket ..., ENGINE OIL CONSUMPTION INSPECTION AND REPAIR GUIDELINES TSB #: 21-EM-003H Page 2 of 11 SUBJECT: Engine Long-Block (Applicable Vehicles up to 18MY and prior) PART NAME PART NUMBER NOTES ENGINE LONG BLOCK Sonata 2.4/2.0T (11-14MY) 2.4 GDI 21101-2GK50QQHRM YFa 11-14MY (ULEV), What Type of Engine Oil for Hyundai Getz. Capacity. Recommended Engine Oil for the Hyundai Getz. How Much Do You Need? We analyzed official data on Hyundai Getz engine oil for 1 generation and 7 modifications produced from 2002 to 2009 and figured out the optimal liquids., Walmart had me sign a waiver at 11700 miles because the engine oil was below the dipstick (22' Santa Cruz 2.5L Turbo). A dealer changed the oil at ~5070 mikes. ... A different Hyundai dealer conducted an oil consumption test and my vehicle had no loss of oil after about 2,500 miles. Looks like the first dealer did not put in enough oil at my ..., The oil consumption case is Cho, et al. v. Hyundai Motor Company, LTD., et al. and that case is being litigated. Related Articles Hyundai, Kia update security after TikTok challenge thefts, On March 23, 2022, the law firm of Sauder Schelkopf LLC filed a class action lawsuit captioned Cho, et al. v. Hyundai Motor Company, LTD against Hyundai and Kia on behalf of Hyundai and Kia owners and lessees with vehicles that are prone to excessive engine oil consumption, oil sludge and engine failure. It has been alleged that consumers with Hyundai and Kia vehicles are experiencing oil ..., By Jeff S. Bartlett. May 4, 2021. Hyundai. Hyundai is recalling 125,840 Elantra sedans, Kona SUVs, and Veloster sporty cars with a 2.0-liter engine to address a potential issue with the piston ..., As per hyundai it's 1 quart per 1000 miles.... That's not normal oil consumption, for any engine. Get it checked out. It may be a simple leak ( as a bad drain plug ). Or something more serious. Mine uses 1 quart per every 533 miles. In the middle of the 2nd oil consumption test every 1,000 miles., Follow the manual guidance and only check oil level 15 minutes after shutdown to ensure it has dropped to the pan. Anywhere within the textured part of the dipstick is “acceptable” per Hyundai. Source: I have a ‘22 SC and wife has a ‘19 Tucson with the 2.0 Nu engine with oil consumption issues., Hyundai Motor Company, Ltd. et al. or the clinically impersonal file name of 8:22-cv-00448. There are a wide variety of Hyundai and Kia models named in the suit, some going back so far as 2009 ..., The Hyundai 2.4 engine is a temperamental one that has had its fair share of issues over the years. One of the most commonly reported problems with the 2.4L GDI Theta II engine is excessive oil consumption. There is quite a bit of speculation as to the root cause of excessive Hyundai 2.4 oil consumption,…, Two companies are denying coverage for these Kia and Hyundai vehicles because they're so easily hot-wired. Car insurance companies don’t take unnecessary risks—and now, for State F..., Jan 3, 2016 · Once an engine gets beyond perhaps 75,000 miles, and certainly past 100,000, increased oil consumption should be expected. In addition, many newer engines use thinner, lower-viscosity oil, such as ... , 1.6L oil consumption. My daughter has a 2013 accent with a 1.6L engine. It has 122,000 miles on it. Lately it has been using about a quart of oil between oil changes. I can not find any oil leaking on engine or on the car. I have not seen any smoke coming from exhaust. I've been reading online about this and it seems like it could be a pvc ..., The engine burning oil is one of the most common problems that a vehicle can encounter, particularly one with high mileage. If your Hyundai i10 is burning oil it is typically caused by piston rings or valve guides. How Much Oil Consumption is Normal? Most auto manufacturers are hesitant to tell you, The TBN of fresh oil is typically in the range of 7 to 10 for gasoline engines and 10 to 14 for diesel engines. If the TBN drops to a point where the oil can no longer neutralize acids, usually around 3, it normally indicates it is time for an oil change. At 4800 miles, mine was at 1.5.