Forum Discussion
jimh406
Oct 13, 2018Explorer III
zcookiemonstar wrote:
I am not sure but don't most of these gas trucks have to run midgrade or premium gas? If you do upgrades for more hp I think you will have to for sure. So what is the price of diesel vs midgrade or premium gas? Around here diesel is still cheaper.
No, you can use 87 octane or more if you want with a different tune. Of course, tunes also change shifting if you are talking automatic. Sure, tunes can help diesels as well.
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