Engineered Fuel vs E-Free Pump Mix

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sb47

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Yes, some refiners get wavers to not blend ethanol. This has lessened greatly under the Biden admin.

Cars don't have carbs with sensitive rubber and plastic parts. Plus most of the fuel system parts are stainless now days.
I worked for the company that built the fuel systems including the intake pump/filter/sending unit for GM and even back in the 90's they were designed to use ethanol fuel. This came about because Brazil and other countries began to start ethanol use even back then
That does not explain all the cars that are on the road. Not all cars have fuel injection, particularly the older cars that are still on the road. With ethanol being so prevalent, why don't small motors have ethanol resistant fuel systems?
 

sean donato

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That does not explain all the cars that are on the road. Not all cars have fuel injection, particularly the older cars that are still on the road. With ethanol being so prevalent, why don't small motors have ethanol resistant fuel systems?
By large and far they are disposable engines. Anything major goes wrong throw it out and replace. Same can be said for the fuel system on small engines. Throw it all out and replace it.
 

sb47

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By large and far they are disposable engines. Anything major goes wrong throw it out and replace. Same can be said for the fuel system on small engines. Throw it all out and replace it.
Thay may be disposible in there mind but not mine. That doesn't explaine all the older cars that are still on the road.
 

sean donato

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Thay may be disposible in there mind but not mine. That doesn't explaine all the older cars that are still on the road.
I have several trucks from the 70's. All of them needed a fuel system overhaul at some point. The old rubber components couldn't take the ethonal when it hit our area. Thinking about it, I'm pretty sure I had to bump up main jets a size or two in the 73 as well. Ended up replacing the fuel lines and rebuilding the carb. Fuel pump was changed out as well. No issues since
 
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That does not explain all the cars that are on the road. Not all cars have fuel injection, particularly the older cars that are still on the road. With ethanol being so prevalent, why don't small motors have ethanol resistant fuel systems?
There are not many carbed cars still on the road and those that are will have problems with ethanol fuel.
As for why small.engines aren't ethanol proof. The OEM's have changed fuel line and filter materials. However it's hard to change carb diaphragm parts to something ethanol proof. That and the carb passages etc are so small on small engine carbs that corrosion plugs them up quickly/easily.
 

sean donato

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There are some products being made that are resistant to alcohol, but thats a very small segment. Really if they wanted to combat corrosion they would be making some sort of composite carb bodies, but where's the money in that?
 
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