84-85 Trucks & 4Runners 2nd gen pickups and 1st gen 4Runners with solid front axles

Diesel in gas tank

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Old Jan 3, 2008 | 09:57 PM
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staticx54621's Avatar
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Diesel in gas tank

how much damage does diesel do to a 22r gasoline engine
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Old Jan 3, 2008 | 10:32 PM
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nothing bad to the engine itself, but spark plugs and catalytic converter usually don't like it
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Old Jan 3, 2008 | 11:00 PM
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Fill the tank with diesel did ya?
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Old Jan 4, 2008 | 08:43 AM
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mostly a lot of smoke. But gas in a diesel is very bad. Some people mix in diesel in there gas or ATF not a lot though, just to lubricate the cylinders because gas doesn't lubricate where as diesel has some lubrication to it. Thats why when you put gas in a diesel the injection pump or injectors quit its because gas has no lubrication to lubricate the parts causing major damage to a diesels fuel system.
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Old Jan 4, 2008 | 10:08 AM
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yeah i got gas cans mixed up wheni went to put a gal in my truck it started up fine then slowleey died
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Old Jan 4, 2008 | 11:45 AM
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Just drain the tank and refill it.

I'd drain it by disconnecting the fuel rail, and running a hose to a drum. Jump your fuel pump (B+ and FP in the diagn. box) When you refill, put in 1/2 gal at a time and pump it through as well, that will flush out the residual in the tank.

Happens all the time to people.
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Old Jan 4, 2008 | 05:39 PM
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You don't have to go that indepth just siphen the tank and fill with gas. It quit because diesel isn't as combustible as gas so its hard to burn in a gas engine. Just fill with gas it might crank for a while but it will fire up and don't be concerned if there is any smoke off the start when it fires up.
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Old Jan 11, 2008 | 03:31 PM
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Originally Posted by staticx54621
how much damage does diesel do to a 22r gasoline engine
Most early Toy fuel tanks have a drainplug. Not to worry; just drain it and got on with life
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Old Jan 11, 2008 | 11:04 PM
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I don't think it would like it very much. Diesel is an oil, and gasoline is a, well, it's not like diesel.
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Old Jan 11, 2008 | 11:49 PM
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Both fuels are made up of non polar molecules, thus diesel is soluble with gasoline. Thus, it will probably smoke, might mess with your catalytic converter but you're not EFI, so no O2 sensor to worry about. Seafoam it after you run a tank or two through.
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