Keep driving your GMT800s?

[AuroraGirl]

Another classic is the big long series of posts, to find they are trying to use a seven year old battery. Dish soap ... hot coolant will steam clean oil, fine in the cooling system, terrible in the crankcase (bearing journals). I actually don't use any additives. Though if you have to flush your cooling system, I think prestone might still make a kit.

Prestonr makes a product for flushing oil out and just a coolant flush (lower impact kind)

 

[stutaeng]

319k GMT800 Suburban to compare fuel efficiency gains...genius!

I was thinking when he did the exhaust system, "this guy now just needs a cam swap to get that chop-chop," but was genuinely impressed by that increase in fuel efficiency. Especially the tire inflation to 50 psi. That literally costs nothing! LOL

 

[Marky Dissod]

Should've tested the exhaust and intake separately. Also should've tested a tune written by a human being instead of a canned tune.
Specifically, a custom tune, with a fully enabled Aussie operating system.

Even so, Project Farm does it again.