What type of fuel should be used for a classic 1966 truck? (F150, coupe)
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I'd presume the engineers who designed the motor designed it to run on fuel that was available at the time which had a lead content in it, You might need a lead additive. https://www.google.ca/#q=lead+additive+for+old+cars
ethanol disolves rubber,I used it in my 65 mustang fastback and coupe with no trouble,kind of funny that my 99 Tacoma handbook advises not to use ethanol,I only have 205,000 miles,still like new.
Usually fine if you're just puttering around town. Lead acted as a lubricant so you get some problems at higher rpm/higher load with overheating from increased friction (also engine wear). Larger electric fan and an oil coiler will help more than the lead substitutes for the over heating but not the wear. None of them work that well. You can add a small amount of diesel to a regular tank as a stabilizer. Second thing lead did was act as an octane booster. Might run better with higher octane or might not.
E10 depends whether you drive it or not. It's much more hygroscopic than non-ethanol gas is if it's mostly sitting around in the tank you can get problems from rusting and you'll want to replace all the plastic/rubber fuel hoses with nylon or something that ethanol won't destroy. You can find ethanol free gas some places but it's often expensive. Local marina would be a good place to ask. Also not a bad idea to install a water separator filter in the fuel line if you're not driving it much. Actually driving it is always great. Easiest way to prevent rusty tank syndrome that E10 can cause is to drive it. Of course if you already have rusty tank syndrome that doesn't help any. Gotta pull the tank, drain it, clean it, treat it, coat it, reinstall. Then drive. Just depends how much time it spent sitting in a barn before you found it.
Pretty sure newer models use unleaded 87 or "supercharged" 91. As to older, can't be sure as you're talking about classic 50 years ago but a guy I know who collects old cards including pickups I know for a fact from him that many will work on e10 just fine. With that being said your carburetor is still "under attack" so you may consider some commercial products to fight against it. After all even Ford T was planned initially on ethanol, it should be working ok, good luck.
I have a 66 Ford F150 truck and don't know what gas would be best to use for it. Anyone have information on this would be greatly appreciated!
You should find a station that sells classic fuel. They stored it from the 60's for future use in classic cars and trucks. If you can find it, it usually sells for a nickel a gallon like the old days.
You can run unleaded gas in it. 87 octane is fine. Leaded fuel used to serve to raise the octane rating of gasoline and for internal lubrication.
Oils and their additives are much better these days than in the 60's. Just run regular gas and you'll be fine.
Best answer, and SMAREST, answer so far!! For Christs sake, if its been run any in the last 25 - 30 years, its had pump gas, E10 for those who think its something new, in it.
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