Is a thinner oil or a thicker oil more desirable for an OHC vehicle because I've heard that pushrod engines can run a little bit thicker oil than an OHC engine. Do you think I could use a 15W40 diesel oil in and OHC engine with 153,000 miles? I'm might try it to see if it cleans out any deposits and I've heard alot of people on here say their engines run so much smoother and quieter with a 15W40 diesel oil.
I just have a hard time putting anything in my engine other than the weight/specs of oil that my manual states. My manual says to use a 10W30 SL/GF-3 oil and I'm having a hard time deciding if I should use something other. I mean 15W40 is thicker than what the manual says and the diesel oils aren't GF-3 certified. I'd like to use Rotella 15W40, Mystic 15W40, Delo 15W-40, or another good one. Anyway what do you think?
Maybe I'll just stick with the SuperTech 10W30 and ST filter.
[ May 22, 2004, 10:57 PM: Message edited by: gtm245 ]
I just have a hard time putting anything in my engine other than the weight/specs of oil that my manual states. My manual says to use a 10W30 SL/GF-3 oil and I'm having a hard time deciding if I should use something other. I mean 15W40 is thicker than what the manual says and the diesel oils aren't GF-3 certified. I'd like to use Rotella 15W40, Mystic 15W40, Delo 15W-40, or another good one. Anyway what do you think?
Maybe I'll just stick with the SuperTech 10W30 and ST filter.
[ May 22, 2004, 10:57 PM: Message edited by: gtm245 ]