Another fuel mileage problem
April 28th, 2024, 7:02 PM
#1
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Another fuel mileage problem
Hello! New here and need some help. I have had my used 2019 LTZ for about six months now. 5.3L 8sp. 80 some thousand miles on it. Mileage was about 16-17mpg initially. Now I'm lucky to get 12mpg. Everything is bone stock. I have bought the cheapest fuel I could get. I think I need to go to the 93 octane or stay away from the ethanol blend all together. Could it be that easy? Thanx in advance!!!
April 28th, 2024, 8:15 PM
#2
high octane fuel won't help. Ethanol free will help a little bit. Top factors are engine maintenance and driving habits.
April 28th, 2024, 10:23 PM
#4
nothing that you're aware of. Try running some diagnostics.
Also, how are you calculating your economy?
Also, how are you calculating your economy?
April 29th, 2024, 9:23 AM
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I have only had it for about 6 months. Dealer did all services such as AF oil change etc. I check my mileage the old school way.
What diagnostics would you suggest? No codes stored is all I know at this point. Maybe better look at the air cleaner instead of trusting the dash. Thanx!
What diagnostics would you suggest? No codes stored is all I know at this point. Maybe better look at the air cleaner instead of trusting the dash. Thanx!
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