what oil ?

**Darektylka** · #1 (**permalink**) 08-03-2010, 01:21 PM

what motor oil is evryone using?
Im running rotella synthetic 5w40 every 5k but might switch to regular oil(motorcraft or rotella) to save some $ since changes every 5k anyways.

AW794 · #2 (**permalink**) 08-03-2010, 02:13 PM

motorcraft

BlueF350 · #3 (**permalink**) 08-03-2010, 02:17 PM

Rotella T6 every 5k miles. Why not have the improved protection and performance of the synthetic especially if you are a heavy usage application like towing, etc.

Black Power Stroke · #4 (**permalink**) 08-03-2010, 05:05 PM

Anybody run the Mobil 1 synthetic turbo diesel truck oil?

**Darektylka** · #5 (**permalink**) 08-03-2010, 05:51 PM

hmm maybe i should just stick with synthetic

jac97psd · #6 (**permalink**) 08-03-2010, 06:08 PM

Hell I'm just using Rotella 15W40. I mean if you don't do too much towing or if you don't live in cold climate you don't have to use synthetic if you change every 5k miles. This is coming from the tech support at shell.

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