I bought a 2004 Chevy Avalanche 5.3 recently. It has 200K miles. I was impressed how well it seemed to have been maintained and cared for. Garaged, not a scratch on it, etc. Owned by an elderly man who I presume babied it.
It runs great, but upon cold start up it emits white smoke for about 1-2 minutes at idle. After that, it stops completely. I have surfed the net, and I see there are multiple causes that could be doing this. I am confident it is not condensation. It happens every time, even if its 100 degrees outside. It does not smoke during warm start ups.
It consumes more oil than I thought it would. I add a quart every 1000-1500 miles. Oil remains perfectly clear. I am running 10w-30 SuperTech High Mileage Synthetic, NAPA Gold filter. Opinions and advice are welcome. Thanks.
It runs great, but upon cold start up it emits white smoke for about 1-2 minutes at idle. After that, it stops completely. I have surfed the net, and I see there are multiple causes that could be doing this. I am confident it is not condensation. It happens every time, even if its 100 degrees outside. It does not smoke during warm start ups.
It consumes more oil than I thought it would. I add a quart every 1000-1500 miles. Oil remains perfectly clear. I am running 10w-30 SuperTech High Mileage Synthetic, NAPA Gold filter. Opinions and advice are welcome. Thanks.