5w-40

[Dean'o]

Can you only get 5w-40 Rotella in synthetic?

[robertwhite]

yup

Whats the matter with synthetic? (besides cost)

[Dean'o]

Nothing wrong with synthetic. Went to 4 different stores today and could only find 5w-40 in sythetic. I ended up buying some though, $19.50 a gallon (OUCH)! By the way how many miles between oil changes using synthetic (first time user)?

[robertwhite]

5W-40 is what you want, especially if it gets cold by you.

$19-20 is normal price at TrailerTrash Mart.

Oil change will be $100 (4 gals. + filter)

As for what mileage to change at. You will get a million different points of view. Do a search and make your own informed choice.

[jesilvas]

Not much over 5k. 5k to 7.5k because of the HPO system. It shears the oil molecules. I'd run it for 5k, send in a sample and see how it's doing and go from there.