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Jan 3, 2025
12:14:32pm
mang 3rd String
I also have a 5.0 F-150, do you use 87 when you're not towing?
I'm in Utah, where they sell 85 octane. Some places online I've read say 85 is fine if you are at high altitude (which is why they allow selling 85 in utah). Some places say to always do at least 87, but do full premium when towing.

what do you do when not towing?
mang
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mang
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Jan 6, 2025
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