Recent content by Fireman591

  1. Fireman591

    0-20w oil

    Walmart is carrying Dexos-D Mobil 1 :) https://www.walmart.com/ip/Mobil-1-ESP-X2-Full-Synthetic-Motor-Oil-0W-20-5-Quart/5020133446?from=/search
  2. Fireman591

    2.7 Turbomax

    After getting 29.1 MPG going 73-75 miles per hour from Michigan to Florida and back in our 2022 3.0 diesel Suburban I will never go back to a gasoline engine. 765 miles of range was flat out awesome!!!!!
  3. Fireman591

    Magnaflow muffler upgrade on 2021 Tahoe with 5.3

    Well I finally pulled the trigger on my 5.3 2021 Tahoe for a muffler upgrade. I cut out the stock BBQ grill sized muffler and welded in a 18 inch MagnaFlow Performance Muffler model 12259. I left the flapper and resonator. The sound is just a tad louder but the sound is much deeper than the...
  4. Fireman591

    What did you do to your 21+ T1XX today?

    Well I finally pulled the trigger on my 5.3 2021 Tahoe for a muffler upgrade. I cut out the stock BBQ grill sized muffler and welded in a 18 inch MagnaFlow Performance Muffler model 12259. I left the flapper and resonator. The sound is just a tad louder but the sound is much deeper than the...
  5. Fireman591

    Gas vs Diesel fuel price

    Diesel in Midland Michigan was 5 cents cheaper than 87 unleaded. 3.32 vs 3.37 :) LOL
  6. Fireman591

    LM2 Duramax Oil Analysis - Blackstone Labs Report

    I agree. I change mine around 7500-8000 miles and replace my filter every 4000 miles. I use the Purolator PureOne filters. The oil can last a long time but you don't want a dirty filter to start bypassing. For 8 bucks it is worth the added insurance.
  7. Fireman591

    Alexa app now available for 2022's?

    Well I finally got an answer from Onstar tech support. The 2022's are not compatible with Alexa and the letter I got in January stating my 2022 Suburban is getting Alexa was sent out in error. WHAT A JOKE!!!!!!! The google platform sucks!!!! I enjoy the non google platform in our 2021 Tahoe...
  8. Fireman591

    Bay City MI to Calhoun GA on one tank of diesel

    Yes my Tahoe has 4 gallons less than my Suburban.24 vs 28
  9. Fireman591

    Yukon Denali Duramax - Is it slow?

    Mileage is a big deal when premium is well north of 4 bucks a gallon. Diesel is now close if not cheaper than regular unleaded. We made it from Bay City MI to Calhoun GA on one tank of diesel in our Suburban. I had the cruise set 72-74ish the whole trip with a 10-15 mph headwind. My 5.3 would...
  10. Fireman591

    Yukon Denali Duramax - Is it slow?

    I have a 2021 Tahoe with the 5.3 and a 2022 Suburban with the 3.0 diesel. The diesel Suburban hands down feels like it has more pep. The other plus is 29 MPG average vs the 19 MPG average from the tahoe doing 75 mph on the highway :) . The 6.2 has a ton more power off the line but these are...
  11. Fireman591

    Bay City MI to Calhoun GA on one tank of diesel

    We stopped for breakfast and lunch along with many rest stops. We left at 3am so 12.75 hours later we arrived at the Buc EEs in Calhoun Georgia. :)
  12. Fireman591

    On-Star costs

    I just told them I want data and a basic Onstar plan and the most I would pay was $25.00. If not I would cancel everything. My Tahoe and Suburban each have this plan.
  13. Fireman591

    Bay City MI to Calhoun GA on one tank of diesel

    No we still have our lemon law Tahoe. We did a cash and keep deal with a 6 year 75k 0 deductible GMPP warranty. It is a good daily driver for us and we don't venture to far from home with it since those 5.3 and 6.2 engines are ticking time bombs with push rod bending and lifter issues. We will...
  14. Fireman591

    Bay City MI to Calhoun GA on one tank of diesel

    I hear ya. We normally fill up in Cleveland TN or Ringold GA but I had enough range to make it to the Buc EEs in Calhoun GA. The range was at 55 miles but when I left I75 and turned the range went to " LOW"
  15. Fireman591

    Bay City MI to Calhoun GA on one tank of diesel

    Not bad. When I left MI they were all at 35 psi.
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