The Fiddle

I bit the bullet and finally plugged my old InTune from my GTO into the Sierra yesterday. Played with a few settings, but mainly just straight canned Diablo tune and Firm shift trans tune. Truck didn't explode. GM didn't call me through the Onstar to tell me I angered the warranty gods. It was a good day. *continues donuts*

I had a '90 GMC 350 TBI that would use about half a quart between changes every 3000 miles. Old tired motor that I pushed hard every single day. I still have my '99 OBS 4x4 and it used a quart every 3000 miles like clockwork up to rebuild. Rebuilt as a 383 with a torque minded cam (high lift, low duration). Broke in properly, still uses at least a quart every 3000 miles. But it is/was used as a truck (hauling, towing, farm truck things) up until a year ago when it got "retired". It just sits around mostly now. I had a 2005 Silverado L33 5.3 "H.O." I bought used, so I can't say how it was broken in. I used Castrol 10w 30 in it. Daily driver and work/play truck. Used a quart every 3000-4500 miles. Almost every V8 pickup of every make I've been around uses 1/2 quart to 2 quarts every 3000-5000 miles. By design, engines will burn oil as oil will cling to cylinder walls during combustion events and exhaust events, lubricate hot parts and either burn or evaporate (coke) off, etc etc. And don't get me started on diesels...

Pretty much. Its just a gussied up base truck without having to go on up to SLE trim. Like the Silverado CST. Plus G80. I wondered tbat myself but meh. Joke is on everyone else though, this truck has the driver's assist handle.

2015 Sierra Elevation Edition - 5.3/3.42/4x4 And it's already reminding me how much of a PITA it is keeping a black vehicle clean. Only bad thing is not E85. Hopefully I can fix that.