Originally Posted By: krismoriah72
If it were my truck i would imagine that DELO 5w30 hasnt been around very long and wonder what was used the other 13 yrs..then decide that in my ownership im going to run Xbrand 5WXX
In fact, that would be correct; it can't have been around that long. And, I've always been hesitant about using a synthetic in a vehicle that consumes oil.
Poppi: If you wanted the Delo variety, then I suggest you contact Chevron directly or check some trucking outfits (as in repair shops or dealers). A very similar alternative is Mobil Delvac 1 LE 5w-30. I understand both these products aren't priced that great down south, but for some reason, they're very cheap up here.
In any case, there are plenty of options if you want to save a bit of money and not have to go on a big hunt when you need oil. One of the thicker HM variants mentioned could certainly be worth a try.