06 Gs300 Oil Consumption

[spine911]

im wondering if it is normal for the 06 GS300 to consume a quart or two in between 5000miles oil changes??

is it normal to add oil in between 5k miles oil changes to add oil to keep the level above minimum??

im fairly new to this car..

[GS300dude]

im wondering if it is normal for the 06 GS300 to consume a quart or two in between 5000miles oil changes??

is it normal to add oil in between 5k miles oil changes to add oil to keep the level above minimum??

im fairly new to this car..

how many miles you have on the car? what is your driving style aggressive? normal? kaotic?!! .... i say thats not normal espicially for a 2006 model year....the car seems to burn out too much oil....

[pauljcl]

im wondering if it is normal for the 06 GS300 to consume a quart or two in between 5000miles oil changes??

is it normal to add oil in between 5k miles oil changes to add oil to keep the level above minimum??

im fairly new to this car..

The engine is the V6 that Lexus sprinkles in many of its models. My experience with an RX300 of 1999 (purchased 2003 with 45K miles, now 75K miles) is that I have never had to add oil between 5000 mile oil changes. FWIW!

[John Stanley]

My 2006 GS300 RWD has 88000 miles on it, and doesn't burn a drop between oil changes.

Stan

[steviej]

My 2006 GS300 RWD has 88000 miles on it, and doesn't burn a drop between oil changes.

Stan

Nor does mine. I have 57,000mi on my clock.

However, depending on who you talk to, some "experts" will say that this is an acceptable consupmtion of oil.

Have you looked to see if there are any oil leaks or weeps? Do you have any hint of blue smoke especially upon start up?

The oil has to be going somewhere.

steviej

[eatingupblacktop]

If you haven't been doing quarter miles for that 5k then I would say it's abnormal cunsumption. Put a tracer in your oil and see where it comes out. You can also pull a plug.

[zooomer]

My 2006 GS300 RWD has 88000 miles on it, and doesn't burn a drop between oil changes.

Stan

Nor does mine. I have 57,000mi on my clock.

However, depending on who you talk to, some "experts" will say that this is an acceptable consupmtion of oil.

Have you looked to see if there are any oil leaks or weeps? Do you have any hint of blue smoke especially upon start up?

The oil has to be going somewhere.

steviej

I don`t know, just check my oil level and is the same thing. 2 month ago i add about 1/2 quart to make sure the level between the two dots and now is below bottom dot. I have no blue smoke in a mourning and engine is free of any leaks. May be it`s normal? Newer have oil check light. I will keep my eye on level now. How much exactly quarts should be in the you know? The oil I use Mobil 1.

[semilegal]

I've been battling Lexus over this issue for months now. My car sucks down .5 qt./1000 miles (1 qt./1,700 mi.) and it misfires too. The Lexus manual allows for this kind of consumption ... a manual written by the "engineers" at Lexus. I did receive a "warranty extension" letter from Lexus, but they're battling me at every step of the way. They absolutely know there's a problem with the '06 GS300 because they also sent out a "notice" letter prior to the warranty extension letter (I didn't receive the former), which lists the codes your car will evidence if it's having the problem ... codes, incidentally, which my car produces. NOW, my dealer is trying to tell me that since I didn't put NGK factory plugs in the car, my "aftermarket" plugs probably caused my misfiring. OK, then what about the gross oil consumption and all the other GS300's with major issues - caused by aftermarket batterys perhaps? I practice law and I'm seriously considering a class-action effort if this continues. I've driven Honda and Toyota products starting at age 8 with motorcycles, various Accords, an S2000 and a few Land Cruisers and NOT ONE of those Japanese engines has EVER leaked or consumed a drop of oil. Don't tell me this is "normal" ... maybe if it were a 1980 GMC pick-up.

[UCF3]

No it's not normal. Is there another Lexus dealer in your town that you can go to? A toyota dealer can do the same test. Also, what brand spark plugs are you using anyway?

[semilegal]

I used Autolite, which I know are not NGK (but this isn't really a racing vehicle); Lexus is using my aftermarket decision to deflect from their issue, which are prevalent on a number of these vehicles ... not just my aftermarketplugger.

The local dealer - Thompson of Doylestown PA - is merely the "information collecting resource" for Lexus corporate, so they both tell me. My 1 qt. of consumption over 1,700 mi. is w/in factory specs .... according the manual written by Lexus, the offending entity in my estimation and evaluation.

BTW, my local dealer gave me a crazy number for plug-replacement of over $600 BC they said it was a "time-consuming" job; my brother-in-law did it in less than half the time they told me it would take ... I watched him (cause that's what I'm good at - under the hood).

If Lexus wants me to service it at the dealer, then the dealer shouldn't rip me off and lie about how long it takes to do the job. This behavior is prevalent throughout the auto repair business and would be considered theft in any other industry (mine, for instance).

[UCF3]

DO NOT DRIVE THIS CAR YET.

Well I can't speak for the dealer but I don't recall seeing an Autolite spark plug available for any Lexus car out there, so there's a good chance the dealer is correct. the plugs you have were not designed for your car. I would suggest changing them out with ones designed for your engine.

Since they're are diagnosing the oil consumption problem I would eliminate the spark plugs being one of the causes for misreading on their instruments, especially the one that tells them if you're a candidate for the CPO.

If you're not interested in going back to the Lexus Dealer, you can try going to a toyota dealer or a Toyota Specialist in your area. Their labor will be cheaper and you have that piece of mind that it's done correctly.

Since you haven't listed what year your GS300 is I can't look-up the part for you. Also take a look at the receipt Lexus gave you for additional parts and services you need to perform.

try visiting:

JCwitnney, Summitracing or Ebay, select your year, make, model and engine size and follow the recommended spark plugs and wires.

good luck and keep us informed.

[semilegal]

my GS300 is a 2006 and the misfire started before the plug change (along with the coding) - I might just replace the plugs again to quash this issue from Lexus bc there are many people WITH NGK factory plugs experiencing the same issue (misfiring and oil consumption) ... in fact I've seen two form letters from Lexus which name the exact coding errors I'm experiencing. My GS has 88K on it and the problem didn't manifest itself until about 80K.

I dive this thing like a baby and always have ... as opposed to my 600RR and my S2000, which would have every reason to leak something from somewhere by how I run them --- but they don't bc they're engineered by Honda, a company that has NEVER let me down. I was a big Toyota fan too, especially considering my cult-like affinity for Land Cruiser, but after this, I feel like I'm driving a (tax-funded) GM.

How many miles on your '06 GS?

[UCF3]

That sounds like a plan. Plus, the dealer wants your car to fail with the right code. My dealer is ecstatic about my piston ring issue becuase they're going to make at least $4-5k off the build labor. I am still waiting on back-order parts before my build can start.

I have 108k on my GS AWD and I am the third owner. Previous two never bothered to look up this critical problem so they never brought it to the attention of the NJ dealer. :chairshot:

You're right, Honda has made some really well-built engines over the years and my parents don't complain about them either. I am more driven by Toyota's performance motors and durability, so when this problem came up I too was sad. Lexus isn't the only brand that has this oil consumption issue. it's very common amongst German cars; the 09-11 M3s and M5s are experiencing this problem as well. Luckily Lexus is doing something to help us, the consumer. If you own a BMW or Audi, you stuck with the rebuild bill, so give Lexus some credit.

[semilegal]

Agreed as to the credit due Lexus, but they're not acquiescing to my assertion that the oil use and misfiring are related & they're not doing anything about it for me but state that "1 quart per 1,700 mi. is w/in factory parameters."

No car manufacturer today should tolerate that kind of oil consumption, let alone state to their customer that it's how the vehicle was designed and what the manual allows - demonstrates some engineering issues with Toyota ... this from a guy who's been to the Rainbow Bridge Toyota facility in Tokyo three times, BC I'm a "Toyota guy." I am a Land Cruiser die-hard and I think the Supra is one of the best overall cars ever made ... I think Toyota is a good company, but I've owned 4 Accords, two Civics, one S2000, multiple Honda motorcycles and countless small engine-Hondas .... NONE of them have ever caused me ANY issues, let alone one of this magnitude. From my limited experience, next time I go for a luxury car, it's going to be an Acura.

[UCF3]

Yikes!!

Well, my dealer (Lexus of Rockville) pretty much gave me the same reason, oil and misfires are not related, which is true. It's a cause and effect relationship. The misfires are causing the engine to run lean or rich, occasionally. You're not loosing 1.7 qrtz of oil every time you drive. You're loosing it over a period from your oil change time til you go to replace the oil. I change my oil over 6-8 months because I don't drive my GS over long distances, don't throttle-up that often, and my ECU isn't forcing certain conditions to happen to the engine. Result I only lost .2qrtz within the 8 months ( Synthetic 5/w30 w/toyota filter and original spark plugs from 75k tune-up).

Your condition can be much worse than mine. The CPO advisery states they will replace the piston ring, pistons, clean up carbon build-up around the rings. What they won't cover is the catalytic converter that is ruined and smells like crap (literally), spark plugs etc. They are limiting their liability that way.

I won't argue with a fellow Land-Cruiser and Supra lover. I'd buy a Cruiser or a turbo-charged FJ over a Rover any day, and I love the 2JZ motors. Been racing Toyota and Yamaha motors since I was 7.

This Club specializes with Lexus but most of us are die-hard Toyota owners and we take pride in that. Let us know if Lexus adds your car to the CPO.

[Shary]

I have a 2006 GS300. My Lexus dealer recently did an oil consumption test, and my car used 1.5 quarts of oil in 1200 miles. I understand this is a rather widespread problem with the engines in the 2006 GS300's. Others with issues - have there been any resolutions from Lexus??