Welcome • User Guide
ToS • Privacy • Canary
Donate • Bugs • License

©2026 Poal.co

131

It's such a disingenuous octane for states to tout as regular. idaho, utah, colorado, new mexico, wyoming all tout 85 octane as regular and then tack on 30 to 40 cents for 87 or 88 octane. when are they going to stop this racket? for the three people that drive carbureted engines still the rest of us are getting screwed.

It's such a disingenuous octane for states to tout as regular. idaho, utah, colorado, new mexico, wyoming all tout 85 octane as regular and then tack on 30 to 40 cents for 87 or 88 octane. when are they going to stop this racket? for the three people that drive carbureted engines still the rest of us are getting screwed.

(post is archived)

You are currently inside a comment thread.
Click here to see all the comments (23).
[–] • 0 pt

Octane levels have to do with compression ratio of the engine. Higher compression ratios need higher octane rating. What the fuck does a carb have to do with it?

[–] • 0 pt

So you're brand new Jeep Renegade put 85 octane in it what will happen? How come there's not 85 octane back east?

[–] • 0 pt

Nothing would happen to a Jeep Renegade. You could put 83-95 octane fuel into it without issue. Compression levels are low enough. Let’s say you buy a Porsche, and you put 85 Octane in. The fuel would start combusting “detonating” before the spark plugs fire. The car would sense this via knock sensor and start to retard the timing. Thus giving you less available power.

Sort of an interesting extreme example of higher octane was would war two. Engine made later in the war required 147 octane in order to run correctly.

[–] • 0 pt

Interesting. So would this eventually foul out the spark plugs and or cause a lot of dirt/grim in the fuel system?