Morzeron

Have a 2002 Gs430 135k time for a oil change what type of oil do you recommend? Synthetic or conventional?

Mishka

I use synthetic blend in my gs430 it runs amazing with no leaks

suprababy

only 5/30 castrol full synthetic. Yo! don't put conventional is not a tractor. 382k miles on original engine still full synthetic castrol 5/30

danielTRLK

supra baby LOL!!!!

Mobil 1 EP is a better option for this engine. Run a good filter and new air filters every 10K.

suprababy

Hey,my gs430 has 400k with castrol.idk what's your gs does but I've got a result
thank you

danielTRLK

supra baby, every engine runs differently. The add pack in one oil may be suited to your engine whilst not suited to another. This is one thing people often get confused with when having one good experience with one oil and then just saying that's the only oil I'll ever use or etc. Using UOA you can actually see how an oil is behaving, also your driving style plays a big factor.

I don't have a GS but have had mustangs, jeeps, lexus', honda's and many more. Each ran a different oil that was properly suited to the engine, my original LOL was to your tractor comment for clarification.

Castrol isn't a bad oil but in my UOA on these engines, Mobil 1 EP just performed better from the off the shelf oils. For me, I have no brand loyalty or affiliation, I just want what works best.

also today's engines require higher quality oils then ever before because of emission requirement changes.

MedicalDoc

Mobil 1 synthetic , 5w30, with Toyota filter 90915-YZZD3 with a change every 5,000 miles, which for me is about a year. My 2002 GS430 runs perfect, with 98,957 miles on it.