castrol 20W50 is good stuff... especially because my oil thins so easily. It always smells like gas and is black even when ichange it out monthly.



I switched to 15W40 shell rotella for a while... i just exhausted 3 cases worth so now i think i'll switch back to castrol GTX



somone told me 15W40 contains a lot of detergents since its a diesel oil, it causes the viscousity to break down faster and drop your oil pres a bit? i'm kinda skeptical on that info but apparantely that is what a shell rep told him... i'll take it iwth a grain of salt

10w-30 castrol

It's gotta be 20/50.