mobil 1 useage on older motor
 

I have a 97' f-150 with 56,000 miles, truck wasn't used that much, 4.6l motor, like new in and out, all power except seat's
but i don't know what oil was used by other owners, manual
says 5x30, does it matter what i want to use as long as its a
good oil like mobil 1.


Ned :)

Why not just use Ford oil or even better Mobile 1 with Ford 820S filter?:)

Check out the "Oil Viscosity Consensus" thread in our Engine forum. There you will see what people are using. It maybe helpful for you to check out other threads. Do a search; with all the previous threads, you could extrapolate enough information to do a doctoral disertation.

Good luck with your choice.

RL 5w-30, Motorcraft FL820S:)

I think I'll do that: use Mobil 1 and 820s filter.

thank's mf150 and alleycat

Ned :)

I swapped over to Mobil 5w-30 with the 820s filter at about the same milage your at. Needless to say, I'm happy with it and wouldn't go back.