dino or synthetic

[Kleetus]

Yeah ... you need to let the engine break in otherwise the rings won't seat and you'll be eating oil likes is going out of style... I probably won't switch to 5k or 10k miles... probably 10k miles.

 

[Invader]

Delo 15w40 competes with some synthetics, Basically is the best Dino oil out there. Will syn prevent major engine failure no, piece of mind yes. Some syns are not as good as others. Check out www.bobistheoilguy.com. Too much info for my pea brain. Oil info overload.

 

[WD40]

My 06 6.0 has 7000 miles on it when I parked it tonight. I went to the dealer for my first oil change at 4600 miles and they put in Shell Rota 15w40 and I will stay with it tell at least 15000 miles to make sure it is seated good, before I go to a synthetics.