diesel in my gas tank....?

Favorite Answer

the gas draws from the bottom of the tank, so I think you are okay. do not run it down to empty, instead fill with premium gas (highest octane you can get) when you get down to about half a tank and then refill with your normal gas again every time you get to a half tank for a while before you let it go lower. This will keep diluting the remaining diesel until its no longer any concern.

I think the reason you got away with this is because you caught it soon enough, and you diluted it right away with the 15 gallons of regular and your truck was running. I'm guessing it may not have started if you had it shut off.

The main concern will be fouling the fuel injectors and spark plugs, but I do think continuing to dilute the mix of diesel and regular at half a tank will take care of the problem. After a while, you can add some fuel injector cleaner additive if you think you still sense a little bit of under performance.

I wouldn't mention this to the dealer unless the car has a problem and they can't seem to diagnose it. Even then, perhaps if you have ever lent the truck to a friend, you might wonder if they accidentally topped off with diesel by mistake or something like that. You don't want to admit adding diesel to the fuel system while the truck is under warranty if you can help it, but outright lying to a direct question is a line I wouldn't cross personally.

Good luck!

The oil change idea is excellent as well. And the fuel filter replacement. Go to a jiffy lube type of place if you don't do those yourself, but don't take it to the dealer if you can help it. Every problem the truck has for the rest of the time it's under warranty you will be fighting with the dealer if they find out you put diesel in the tank. They'll figure out how to blame you for a bad ball joint if they can!...Show more

This Site Might Help You.

RE:
diesel in my gas tank....?
I am an idiot...

In the freezing snow and sleet last night wonderful New England weather, I needed gas cause I only had about one gallon left, so I decided to stop at a station near my house.

I accidentally put Diesel gas in my 8 cylinder 5.7L 2008 Toyota Tundra... I put 6 gallons in my......Show more

I would first ask around in your circle of friends if anybody is friends with a trustworthy car mechanic. Some times it requires just changing a few filters and cleaning out some of the lines.

if you go to the dealership they might make you replace the gas tank and many other things that will easily run you a couple of grand.

Ask a mechanic to replace your filters and you might be able to fill up your tank to the max to dilute the diesel...Show more

dear idiot
put BERRYMANS CHEMTOOL in your tank
we used this to clean carbs. when i sold car parts
change your filter after draining your tank if possible
the two fuels have mixed well so far and seem to be ok
use tha best GAS your can afford or find
use the berrymans every other tank and don't let it get passed 1/2 a tank for a long time


good luck...Show more

Your fuel pump pulls from the bottom of the tank first, so it's not going to change. Put some fuel injector cleaner in with your next tank to help clean the carbon build up from the diesel. It will just run a bit sluggish and maybe smoke out the exhaust. Worst case is you burn up a O2 sensor....Show more