Ted, right now I have Delo 400 syn.....but am going to switch to the Esso XD-3 0W40 for year round use. It is now a synthetic (group III) - previously was a semi-syn (much like the PetroCan Duron)......Id love to use the Delvac 1 that Lightman raves about - but man is that stuff expensive.

 

That's right,the Esso is full synthetic and I'll use it next winter. (Hey, I thought the 5-40 I'm using was full synthetic now too??

 

There you go agan.........you sure are senitive!!everyone is having a good time and here you come with a threat....Whats the deal?????????????????/

 

i use delvac 1,i notice the oil pressure comes up alot quicker especially in winter,temps can be 30 to 40 below zero.the truck is'nt plug in most of the time....just my 2 cents........

 

Delvac 1 is my choice of group 4 synthetics, however if I chose to be a little more cost effective about it, I would use Petro Canada duron 5w40. It's a group 3 synthetic, however just about the best one out there, and at a good price. PC Duron repeatedly has great oil analysis reports.

The cost of d1 doesn't really bother me, as I've got an amsoil dual remote bypass kit with billet adapter and mount from CPFF, sitting here waiting to be installed. I'l be CONSERVATIVELY changing my full flow filters at 10k, and bypass at 20k. Probably change the oil at 40k or 1 year at most. I'm excited to see how d1 holds up over the extended drains with the bypass system. Most people that do extended drains seem to use amsoil.

 

If you wanna know anything about oil - Lightman is THE guy to ask...

 

haha, I deny that distinction but will take the compliment!