To higher octane or not ?

[Raymundo76]

Other than cost and MPG are there any issues (benefits) gained by using 89 or 91 octane gas?

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[710-oil-614]

EDIT: ANSWER FOR EB ONLY - DIDN'T REALIZE OP WAS HYBRID AT FIRST.

More power? I have not seen an increase in efficiency by running 93 but the engine runs stronger and smoother.

MORE important than running a higher grade fuel is making sure you're always filling at a top tier fuel station.

I do not believe running 89 to be worth it.

I believe the factory flash is set for 91 so you theoretically can get max power with 91 if available in your area.

I run 93, filled at Shell, and sleep well at night.

 

[Mikeetch]

Maybe in an Ecoboost. Seems like a waste of money in a Hybrid

 

[AngeloInSC]

Many studies have been done about this and ALL pretty much tell you that you are wasting your money if your vehicle doesn't require it. As another responder pointed out, as long as you are filling at a Top Tier (proven to be better fuel) rated station, you are getting the most for your money.

 

[Raymundo76]

Many studies have been done about this and ALL pretty much tell you that you are wasting your money if your vehicle doesn't require it. As another responder pointed out, as long as you are filling at a Top Tier (proven to be better fuel) rated station, you are getting the most for your money.

Not talking about $; will the engine run better with a higher octane? Will long term maintenance issues be reduced. Or are there no real benefits other than a small gain in HP?

 

[Benilla]

Won't have any difference on the hybrid: it lacks the hardware required to get anything out of higher octane gas. Tested this myself.. work offered to comp a full tank of gas for a road trip to an annual meeting so I ran to empty and got the highest octane, no difference

 

[AngeloInSC]

Not talking about $; will the engine run better with a higher octane? Will long term maintenance issues be reduced. Or are there no real benefits other than a small gain in HP?

Nothing I've ever seen supports higher octane fuel having any of those benefits IF it is the same quality as the lower octane. Higher octane fuel only burns slower. Ethanol burns even slower and that has proven to be a detriment to longevity.

 

[Raymundo76]

Nothing I've ever seen supports higher octane fuel having any of those benefits IF it is the same quality as the lower octane. Higher octane fuel only burns slower. Ethanol burns even slower and that has proven to be a detriment to longevity.

Thanks for the input!

 

[710-oil-614]

Yep - sorry I did not notice you are a Hybrid owner.

I would only fill 87 on the hybrid.

Honestly, I could probably fill 87 the entire life of the EB and it be just fine. I prefer the extra power and "smoother" engine operation - but I understand that I am overpaying for any benefits I am seeing.

But still - top tier regardless.

 

[linerguy]

what determines top tier?

 

[Exranger]

what determines top tier?

Chevron, shell, not rotten robbies... in CA, am pm claims to be top tier

 

[Ozarkbeard]

Sticker on the pump tells you.

 

[Ozarkbeard]

Other than cost and MPG are there any issues (benefits) gained by using 89 or 91 octane gas?

Turbo, yes. Hybrid, no.

 

[crgator]

what determines top tier?

TOP TIER™ Approved Gasoline Brands

 

[Raymundo76]

Turbo, yes. Hybrid, no.

If Ford recommends 91 for hybrid Mavs but says it OK to use 87; what does that really mean?

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