Shell Rotella T synthetic 5-w40 oil???
08-09-2009, 07:03 PM
#1
Shell Rotella T synthetic 5-w40 oil??? Any one using Shell Rotella T synthetic 5-W40 oil?
I hear a lot of good stuff about this oil, i switched over to it, in my van , box truck and S10 pick up, over from regular conventional 10-30 oil , i was using what ever was on sale, vavoline, GTX, cam 2 , mobile, etc
but how good is it in a high performance engine like the LS motors?
is the 5-W40 weight ok?
I hear a lot of good stuff about this oil, i switched over to it, in my van , box truck and S10 pick up, over from regular conventional 10-30 oil , i was using what ever was on sale, vavoline, GTX, cam 2 , mobile, etc
but how good is it in a high performance engine like the LS motors?
is the 5-W40 weight ok?
08-09-2009, 07:09 PM
#2
What I know is that unless is a build you should stick with the 10W30 or the 5W30 if you go with a little thicker oil when hot the journals/bearings and such are made to flow the 10w30 oil no probs. If it gets thicker you could be creating a situation where you engine on one side of the flow journal&bearings has no oil and the other side has way too much pressure because the oil can't flow fast enough. But then again I could be wrong. Now if its an older engine maybe you can run it with no issues but again I am only one opinion.
08-09-2009, 07:56 PM
#4
Teching In
Join Date: Mar 2009
Location: Florida
Posts: 43
Likes: 0
Received 0 Likes
on
0 Posts
Your already improving by going to a synthetic, a heavier oil, everything else being equal, takes horsepower, stick with 10W-30, my choice is Amsoil for what is worth, I've gotten a consistent 3-5% increase in HP switching from conventional, on my dyno.
