Does anyone ever run 86 octane?

I got a tank full of it last night for cheap, and so far so good.

Never tried it in this truck... but I always put it in our Compass and it has no ill effects yet.

 

Didn't you have a problem awhile back with pinging? Ford specifies 87 octane for a reason.

 

where did you find 86 octane?? how cheap was it?

 

[QUOTE=Tbird69]Didn't you have a problem awhile back with pinging? Ford specifies 87 octane for a reason.[/QUOTEgood point t-bird-curious minds want to know

 

The "low" octane in our area is 87.

However, several of the Rocky Mountain states, for example, use a "low" octane of 85.

And I did try a tank full of 85 with no ill effects but since I was towing a travel trailer I stayed with the "mid" octane gas of 87 or 88. I think this was the right decision.

 

Using a fuel grade lower than specified can cause cylinder head and engine temperatures to exceed normal operating limits. It will cause detonation inside the cylinder and can often lead to preignition. Your engine will run like garbage and will be worth about as much if you continue using low grade fuel.

 

That's what I'm thinking... I tried it to see what the truck would do.

I like performing "experiments" on my truck. So far it hasn't died -- yet.

 

86 octane that has to be good for your mileage i'd put water in a mopar's gas tank, it wont matter anyway the tranny will give out first i wont even run 87 octane in my truck let alone anything less. i dont know if its just me, but i aint gonna go "experimenting" on a truck i just spent 35grand on, let alone in the dead of winter. but hey maybe that V6 is invincible

 

hers an experiment you can try thats good globally and may increase your gas mileage- do an oil change using vegetable oil

 

Actually... it would work... but... the weight would need to change, and it would only last about 1,000 miles. In reality, it would work... but the oil change frequency would be unreal.

Would keep QuikChange places happy though...

 

It actually hasn't changed my gas mileage...

I like to run 87 preferably.

It was only 3 cents cheaper per gallon than the 87 octane fuel.

The v6 will last forever. Last of the "good ol'e engines"...

 

it hasn't changed your mileage? you bought 1 tank full, what a joker

 

Ya... it hasn't changed.

It's roughly the same.

I don't think it really much matters.

 

Around here the low is 85, mid is 88. I talked with the dealership since both my 2005 F150 and my 2008 Fusion recommend 87 octane min. The dealership said that due to the higher altitude 85 octane is sufficient. Thats actually what they put in the new vehicles to fill them up when they are purchased.
I also work at a gas station, most everybody uses 85 octane. Personally, I don't. The extra couple bucks is well worth the peace of mind.

 

You cannot accurately does a milage comparison of 86 and 87 octane on 1 tank of gas, maybe after a few thousand miles, but not 1 tank. "roughly" now there's a precise word.