Ethanol in a flat head engine?

Asked by Lawrence Sep 16, 2017 at 01:49 PM

Question type: Maintenance & Repair

3 Answers

F_O_R answered 6 years ago

Ethanol is primarily a problem for fuel system seals. If I were going to run ethanol in a flathead I would up the compression ratio.

Mark helpful
157,295

Bob answered 6 years ago

You are most likely asking if E-10 or E-15 is in today's pump gas with a small amount of ethanol is compatible with your flat-head engine. The big issue will be the absence of lead in the fuel. This will be hard on the valves and seats. Either get them upgraded or run a lead substitute in your fuel.

1 people found this helpful.
Mark helpful

Your Answer:

Related Questions

  • Ethanol in a flat head engine? 3 Answers

    Maintenance & Repair

  • Ethanol gas a problem ? 1 Answer

    1994 5.7 runs lil rough , put seafoam in within a few miles runs perfect , Ethanol gas the problem ?

    1999 Chevrolet Silverado 1500

    -

    Maintenance & Repair

  • 89 ethanol free gas in 2011 g37x 1 Answer

    Is it ok to run 89 ethanol free gasoline in my 2011 Infiniti g37x

    2011 INFINITI G37 x Sedan AWD

    -

    Maintenance & Repair

  • Ethanol gas usage in my truck 1 Answer

    Can I use ethanol free gas in my 2010 6.0L chevy silverado 2500HD

    2010 Chevrolet Silverado 2500HD LT Extended Cab 4WD

    -

    Maintenance & Repair

  • Head gasket in a bottle 8 Answers

    So I have a 2012 Nissan maxima and I have a blown or Bad head gasket & I used that blue devil head gasket in a bottle stuff & I never started my car. My car won't start and my oil is like chunky ...

    2012 Nissan Maxima SV

    -

    Maintenance & Repair

Shortcuts

Search Maintenance & Repair Questions

CarGurus Experts

  • #1
    Gene Arnett
    Reputation
    244,920
  • #2
    Rowefast
    Reputation
    183,430
  • #3
    dandyoun
    Reputation
    169,220
View All

Find great deals from top-rated dealers

Search

Content submitted by Users is not endorsed by CarGurus, does not express the opinions of CarGurus, and should not be considered reviewed, screened, or approved by CarGurus. Please refer to CarGurus Terms of Use. Content will be removed if CarGurus becomes aware that it violates our policies.