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.

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?

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).

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.