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  #21  
Old 08-09-2023, 02:58 PM
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Quote:
Originally Posted by andrewwynn View Post
A fuel pump will last about 5000 hours
Does this apply to most brands, makes, and models?


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  #22  
Old 08-09-2023, 04:59 PM
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Yep if brushed motor.

I found a crazy extensive study on the subject.

4000 if pure gas,
5000 if E10
6000 if E20

(So there's the literally only useful thing about ethanol polluted gas).

If they did diesel sadly I forgot.

It's spooky accurate also.

Both mine and wife's E53 fuel pump quit at 132000 ± 2000 miles and divide by 5000=26.4

My avg mph was 27 at the time.
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  #23  
Old 08-09-2023, 07:24 PM
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(So there's the literally only useful thing about ethanol polluted gas).
It’s funny you posted that. My dad (Vietnam era Aircraft mechanic/engineer) said, “you know kid, now that your running 80% ethanol in your rig, your fuel pump may be a bit more happier, and last a little longer“. I’m at 99,800 miles, and I’ve been contemplating putting a new one in. He was saying the alcohol probably cleaned a lot of the gunk already.

So I gather from what you’re saying is, it’s a matter of when the brushes fail.


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  #24  
Old 08-09-2023, 11:51 PM
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Not about cleaning about being slippery so it doesn't wear the brushes as fast.
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  #25  
Old 08-10-2023, 08:52 AM
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Not about cleaning about being slippery so it doesn't wear the brushes as fast.
Interesting. I’ve always thought petrol was a better lubricant than ethanol.


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  #26  
Old 08-10-2023, 08:59 AM
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Gasoline is not as clean as people think so probably is more abrasive.
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  #27  
Old 08-10-2023, 09:24 AM
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I suspect it dissolves more micro solids that abrade the brushes faster


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