Rotella Oil

I'm confused. Isn't Rotella T6 a diesel oil? Aren't the oil additives different between a diesel and a gasser? Wouldn't it be better to use a non-diesel formulated oil?

Jeff

back in the early 60's my dad went from Ohio to Kansas he had a 57 Olds when he left he put in STP oil treatment because it was to be good for your engine,it cleaned out all of the gunk and when they got back it smoked more than a Hippy in the 60's just a thought

It's mostly a waste of money...but sure, it will work fine.

bigB42 wrote:
not real sure but I think my book says not to use 40 weight 99 flair 454

He dont have a 1999 model!

I am the OP. I was pretty sure I would be OK with the Rotella 5W40 Full Synthetic since the auto parts stores said they could not keep Motorcraft 5W20 Full Synthetic on their shelves, they said all the auto repair shops and used car dealers bought it up to go in large engine pickup trucks.
mtnman

My 1995 454 has been run with 10/40 oil since new. Uses very little oil at 72,500 miles on odometer.

I don't have it anymore Harley Davidson with a Shovel Head engine air cooled and I ran nothing but Rotella oil in it handles high heat very well.

not real sure but I think my book says not to use 40 weight 99 flair 454

everyone calls me crazy but i would not , I REPEAT would not change from regular to synthetic on an engine with any miles on it. I had a car that was high miles didnt leak or use oil, went to walmart the little girl ask if i wanted the full synthetic treatment , i was in a rush and said yes, they changed my oil poured 5 quarts in my car , i started it to pull it out and blew the engine . I think the oil washed all the sludge and deposits off the bearing and it spun a bearing right there and then. Just too odd that my engine blew with 100000 miles , i drive 150 miles a day or more all interstate. the exact same engine with regular oil lasted over 300000 miles and was still going strong when i sold it. My new suburban has the 8.00 a quart mobile 1 syn. oil and i use it due to it always being in it but i dont like or use it in anything else...

Bird Freak wrote:
Yes and 5w40 will be fine this time of year.

Especially a 5W-40 SYN oil...!