Saw this question asked on GMA where it was outlined how much cheaper the Diesel model is compared to the 6.2L V8. Curious to see what the responses will be like here.
Legit question, but does anyone really do this? My husband has had diesels for years and never used top tier. My cars have always recommended the top gas, and I’ve always used 87. The only people I know who use the top tier gas are the guys driving “performance” cars like a suped up challenger or something. Personally, this will be the 1st diesel I’ve ever driven if I can ever get one lol, so maybe I’m missing something.The owner's manual says you should use Top Tier diesel fuel. The only places it is available in Arizona are two CostCo fuel stations. My dealer did NOT put Top Tier diesel fuel in my "complimentary first tank of fuel" and also did not use the GM recommended additive (or any other additive). This is a significant challenge, as there are VERY few Top Tier diesel fuel sources outside the Midwest. I'm going to have to figure out what additives work, because the AD/Delco additive GM recommends essentially invalidates any cost savings from having a diesel!