OT: 88 Octane gasoline ......

[GboCOCK]

Moved to Durham in March. Have recently started seeing it. It's 15% Ethanol as opposed to 87 Octane which is 10% Ethanol. Is there any sort of "hard and fast" rule as to which autos can burn 88 Octane with zero problems. The reason I ask is because it's 30 cents a gallon less expensive than 87 Octane. I have burned 87 Octane forever.

Any wisdom or experience with 88 Octane would be greatly appreciate. I have a Hyundai Sonata 4-cylinder sedan. I'd like to pocket the savings but if it causes any problems, those expenses could dwarf any saving 30 cents a gallon might represent.

 

[Lakemurraycock]

Your car should be able to burn it unless it is really old. That said expect your fuel economy to be lower with 15%. Probably enough lower to partially offset the 30 cents a gallon.

 

[TopHook]

How much fule does your avatar burn you?

 

[vacock]

The higher the ethanol, the lower energy content and worse MPG. Too bad the government doesn’t require unit (MPG) pricing to be posted. Maybe someone here knows the conversion rates.

 

[1vagamecock]

Your car should be able to burn it unless it is really old. That said expect your fuel economy to be lower with 15%. Probably enough lower to partially offset the 30 cents a gallon.

True! There is no savings when you consider fuel mileage and if you let it sit in your tank it can cause problems down the road.

 

[vacock]

True! There is no savings when you consider fuel mileage and if you let it sit in your tank it can cause problems down the road.

I always get no ethanol gas for tractor and lawnmower. Ethanol gas gums up the works.

 

[Backyard Archer]

Moved to Durham in March. Have recently started seeing it. It's 15% Ethanol as opposed to 87 Octane which is 10% Ethanol. Is there any sort of "hard and fast" rule as to which autos can burn 88 Octane with zero problems. The reason I ask is because it's 30 cents a gallon less expensive than 87 Octane. I have burned 87 Octane forever.

Any wisdom or experience with 88 Octane would be greatly appreciate. I have a Hyundai Sonata 4-cylinder sedan. I'd like to pocket the savings but if it causes any problems, those expenses could dwarf any saving 30 cents a gallon might represent.

This is about to be everywhere. The Feds just mandated 15% ethanol in all blended gas. I'm debating just going full non-ethanol in my vehicles, already do in the boat and lawnmower. Like someone above said, the more ethanol, the more it eats your gaskets. It's all planed though, they're trying to kill ICE vehicles and this is an easy way.

 

[KingWard]

Your car should be able to burn it unless it is really old. That said expect your fuel economy to be lower with 15%. Probably enough lower to partially offset the 30 cents a gallon.

I feel comfortable in saying it will partially offset it. I also believe it will create more pinging in older vehicles, which goes along with reduced mileage.

 

[vacock]

 

[Tupacaintdead]

I always get no ethanol gas for tractor and lawnmower. Ethanol gas gums up the works.

Yep, never ever run that crap in a small engine

 

[The Reel Ess]

True! There is no savings when you consider fuel mileage and if you let it sit in your tank it can cause problems down the road.

E85 combusts cooler. So there is a performance advantage. You can run more timing advance, compression or turbo/supercharger boost without detonation. If you have a newer computer controlled engine you can get a custom tune for E85. I suppose 15% ethanol would provide a little bit of boost. But it can be costly if you don't keep running it all out. If you're going to let it sit, there's a product names Sta-Bil that will keep it from separating for a couple of years. I used it in my boat and it worked. The boat sat for more than 2 years and cranked right up when I sold it.

How To Tune E85 Ethanol Tuning Maps ECU

How to tune your vehicle for E85 Ethanol Fuel. Article has Fuel Compensation tables and how to adjusted and maximize your motor power with increased timing

www.enginebasics.com