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Long time member here. Finally coming back since my 2jz turbo days running GC. Now driving something more economical. I just picked up a used Lexus CT200h with 125k miles. Previous fills were done at the dealership 0w20 conventional. After the first week of owning it I noticed high oil...

Hi everyone, I've been trying to find a uoa or voa of this oil for at least a couple hours and haven't been successful. Can anyone help and share? TIA! FYI, considering this in my Lexus CT200h 125k miles.

I just picked this car up 2 months ago and the previous owner always used M1 10w30. Well it seems like I am leaking at my valve stem seals at 73k miles(puff of blue smoke at cold start up and sometimes a puff of blue smoke when I gas it after idling at the red light). When I first got the car...

The spark plug for cylinder 4 was drenched with oil when I took it out. Its been 5k miles since the last plug change. The UOA that was done 200 miles ago was fine. I do not get blow by oil coming out of the crankcase and I checked the compression and all was within normal spec. I do lose oil...

Hi this is for a stock torsen lsd in a turbo'd lexus is300. would running a 140wt cause any problems and what effects would it cause to the ability of the torsen limited slip? thanks Kerry

some of you are probably asking why the OCI was so short. Well, the reason was that I recently took my car to the track and ran her hard! The next day I checked the oil and noticed some shiny metal flakes/particles on the dipstick. SO I changed the oil asap and sent out a sample. Here are the...

I have a turbcharged Lexus IS300, and just went to the track this weekend. I ran my car hard, but did not push it to the limit. I can go 17 psi max, but only ran it at 12.5 psi. Well, I checked my oil level today and noticed it was a bit lower than normal, but nothing major. I refilled it...

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Hi, I have a fully rebuilt Lexus IS300 AT transmission and am currently running the Toyota T-IV fluid which I believe is very similar to Dexron III. I get very smooth shifts on normal driving, but when Im WOT it lags, sometimes slips, and sometimes causes me to hit the rev limiter. I know a...

I can get my hands on both locally at autozone, regular stock. The GC would be the gold M07. This will be going in my turbocharged Lexus IS300 400rwhp. I drive it 3-4 times a week in warm climate, but hardly hit boost during those times. I drive it when its in vacuum under 3-4k rpms 85% of the...

My car currently has about 42k miles on it. 9k of that being turbo'd (10-11 psi daily, and 16 psi max). I used to use Mobil 1 Synthetic 5w30, but recently switched to M1 TDT 5w40 because of the recommendations here. The oil tested was M1 TDT 5w40 (not 5w30 truck/suv listed in the analysis). I'm...

This is holding the power of a turbocharged Lexus is300 400rwhp at 12psi. I was thinking to just use the stock tranny oil, but drain + refill (2.5 quarts) at a sooner interval at every oil change. Thanks

Hi, I recently put in a turbo in my is300 which is making a little bit more than 400rwhp at 12psi of boost. I have been using Mobil 1 Synthetic 5w30 from day one, and also using the same for the past 3,000 miles being turbocharged. I am thinking about switching to a different oil for better...