Just came across this post after looking as to if I should continue to use 87. Someone’s post about mileage since purchase had me curious. I got my ram used with 11k miles on it. It’s a 19 5.7 non etorque.
I’ve only drove it 7k miles with trip b, but I average 20.0. I tend to hyper mile and I do about a 60 mile commute through the hill country in Virginia M-F.
I put 89 in once to see if there was a difference and there def was. Truck seemed quieter and I was averaging 1mpg more than I normally do on a tank (21 vs 20). Price isn’t a concern to me, but I was in a groove and went back to 87 due to habit and because I normally fill up at 3am when I’m half asleep
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