Recent content by OH Chevy Diesel

  1. OH Chevy Diesel

    Engine shut down timer

    Glad the 2020s don’t have it but it is only an update away. Safety nazis trying to protect us from ourselves. Like the “press the brake pedal” to disengage the parking brake. Didn’t need that with the manual parking brake, why now? And the @$#% auto stop that can’t be fully disabled (although...
  2. OH Chevy Diesel

    Engine shut down timer

    It has about a 20 min timer on remote starts. That’s longer than the 10 mins on the Colorado I had. Don’t know about regular starts.
  3. OH Chevy Diesel

    Fuel Mileage

    My overall average is pretty low compared to my 2.8 Colorado. Tow the boat to the lake 3-4 times a month (80 mile round trip) but mostly 34 mile round trip to work 5 days a week. Some city/some highway. Discounting the towing miles, I'm usually in the 20-24 mpg but occasionally only 18-19...
  4. OH Chevy Diesel

    DEF

    Autozone’s turnover is high as well. Sometimes, maybe most times, I go there they are out.
  5. OH Chevy Diesel

    DEF can I drain the tank?

    Not sure but you may be able to siphon it out. Then put a fresh bottle in it. I don’t know if they have an anti-siphon valve on the DEF tank but I doubt it.
  6. OH Chevy Diesel

    Check engine light 10k

    The remote start is disabled when there’s a CEL. GM’s way of helping us. Get a scan tool to check the codes yourself. I’ve heard on star is hit or miss on being able to verify codes. I’ve let my on star expire but have an iDash mounted so I can read them myself. Hard to say what will pop up as...
  7. OH Chevy Diesel

    Hello all

    Welcome.
  8. OH Chevy Diesel

    Fuel additives

    Opti-lube XPD and Summer. Ran a couple different brands and ended up with this one. Can’t really give a reason other than the claims of better lubrication. Ran it in my Colorado 2.8 due to the possible injector failures. No issues in 46k miles.
  9. OH Chevy Diesel

    Rear main seal

    https://www.duramaxforum.com/threads/oil-leaks-on-new-3-0-duramax.1012424/page-2#post-12342461 There’s a couple of other threads as well.
  10. OH Chevy Diesel

    Rear main seal

    There’s another forum where the number of trucks with this issue is going up. Which sucks since I have a 2020...it should be a recall for GM if it continues.
  11. OH Chevy Diesel

    Highway speed hop while towing

    Yeah, a very light hop. Pretty strange, actually. More noticeable in the morning but I’m not driving as fast then. Usually right at 70. In the afternoon it’s higher as there is more traffic and everyone has a lead foot going home.
  12. OH Chevy Diesel

    Highway speed hop while towing

    Trailer tires have been road force balanced with no issues. I can feel the hop in the truck without the trailer connected but to a much lesser extent. Same speed, though. Going to have the truck tires road force balanced this week to see what that does. Waiting for a chance to hook my boat to a...
  13. OH Chevy Diesel

    2020 AT4 Duramax carbon pro

    I know this thread is a year old but I'll post this here instead of creating a new one. Since I've started towing my boat now that the weather is getting better, I've been playing with the tow/haul mode and exhaust brake. So far, the exhaust brake has not impressed me. The owner's manual is...
  14. OH Chevy Diesel

    Highway speed hop while towing

    My new 2020 Silverado LT is a pleasure to drive except for towing, the intended purpose of my purchase. I'm slowly working thru the issue, though. Prior to the 1500, I had a Colorado 2.8l mini-max which did a pretty good good job towing my 4600 lb deep-v boat (walk-thru windshield). It didn't...
  15. OH Chevy Diesel

    Fine shavings on oil dip stick.

    Is it blow-by or normal piston motion causing the air to be felt at the fill cap? If you put the cap on loosely and it is blown off then it may be blow-by. But the air in the engine is constantly moving so unless it it building up enough pressure to forcefully blow the cap off I don't think it...
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