Question about 2005 GMC Yukon Denali

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Improper fuel Regular unleaded gasoline has been pumped into the tank filling it half way. Should I burn out this fuel or add the supreme unleaded to complete filling?

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  • justpianos Sep 23, 2008

    Please advise me soon.

  • justpianos Sep 24, 2008




    thanks a lot!!

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Just top it off with preminum, no harm will be done.

Posted on Sep 23, 2008

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6ya6ya
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Posted on Jan 02, 2017

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I hope you've flushed the fuel tank after the mistake. There could still be diesel in the system, and diesel does not evaporate like gasoline. Diesel will, however, burn off if the engine is hot enough, so you need to get your engine started.
1 Fill your tank with the proper grade gasoline.
2 Try to get the gasoline through the system as far as possible - loosen the feed pipe as close to the carburettor or injector system as possible, switch on the ignition to get the fuel pump to displace any diesel in the pipe (remember to place the end of the pipe into a container so you don't spill the stuff on the floor). Otherwise just suck at the end of the pipe (not recommended) until the gas comes through.
3 Reattach the fuel pipe, then prime the engine with ethanol - also called Quick Start or similar.
Spray the Quick Start into the air intake while cranking the engine. It should start, even for just a few seconds. Repeat this a few times until the engine starts then let it run until the smoke from the exhaust stops. It is not the end of the world to have diesel in a gas tank, much, much worse is getting gasoline in a diesel tank!
This is a first aid remedy, hope it helps.

Feb 13, 2015 | Cars & Trucks

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My 1998 Buick park avenue burns gas faster than it usually does. What should I do.


If you use ethanol blended gasoline this is normal. ethanol blended fuel doesn't burn as well as regular unleaded

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I have a 1991 Honda accord ex..it has been sitting for years now it wont start where should I start I was told that the gas turns to funk after sitting for a long time.


if it is posible for you to drain the the old gasoline out and refill the tank with fresh gasoline that would be great, but if you only have a1/4 tank and draining the tank is not posible fill your tank up with supreme gas not regular the better grade gas with the high octane will dilute the old gas and help burn off the gas when the car starts.if you have more then 1/2 a tank try to pump out the gas with a driil pump, you can buy these a your local hardware store insert hose in filler neck of the tank.you should also remove the spark plugs and with and oil can add 8 good pumps of the can of motor oil in the cylinders do not replace plugs **** with a freshly charged battery turn the engine over few time in 2 or 3 second intervals this will kleen any rust that would have built up on the cylinder walls and also lube up the cylinder wall so that at start up the cylinder wont be dry ,add a few more sqirts of oil between turnovers.Replace spark plug if old ones look bad put spark plug in and start her up its going to smoke a bit at firts **** it will stop after the oil that was put in the cylinders burns off,let the engine idle for 10-15 minutes before putting any strain on motor give it a chance to clean out cylinders burn a few tanks of gas and change gas filter it should be fine.

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My fuel tank runs on diesel I put premium unleaded gas in error Need to drain the tank It is a 2005 pathfinder 7 seater Help! jobever1@yahoo.com


JUST DRAIN OUT GASOLINE IN FUEL TANK.CHANGE FUEL FILTER AND.FILL UP TANK WITH DIESEL FUEL. ENGINE WILL RUN ROUGH UNTIL ALL GASOLINE LEAVES THE FUEL LINES.

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Needs to know the best recommended fuel type for my toyota corolla 1993 model


Hi!!

You should be using regular unleaded. This is "regular" 87-octane gasoline. You have no reason to need gas with a higher octane, it would be a waste, stick to 87.

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I mistakenly put a regular gas in it when its an UNLEADED FUEL only model an automatic 1994 geo tracker


Hi!!
At the pump, when it says Regular, it means Regular Unleaded Gasoline, the one that says Super, is Super Unleaded Gasoline, the only difference between the two is the octane rating. Both will work just fine on your vehicle.
Good Day! Don't forget to rate this post!!

Sep 20, 2010 | 1994 Geo Tracker

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Cani put regular gasoline in my 2000 jeep sahara?


Yes, you can. The vehicle is rated for unleaded fuel.

Specs link:

http://www.automotive.com/2000/99/jeep/wrangler/sahara-utility/1290/index.html

HOPE THIS HELPS! Don't forget to rate, please.

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My son filled the tank of his 97 buick century and within 10 miles the car started bogging down (and stalling) on acceleration. The behavior is the same regardles of whether the vehicle is in motion or at...


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3 Answers

Mistakinly put 50 litres diesel in my almost empty petrol tank


The first thing i'd tell you is to not run the engine at all before fixing this if possible. Diesel fuel doesn't burn very good in a gasoline engine, if at all... There is not enough compression in a gas engine to get the diesel hot enough to burn, even with a spark plug.

There is a few ways to go about this but the easiest one is to find and disconnect the line coming from the gas tank to the engine, as close to the fuel pump as possible (preferably before the filter) and route it to an empty container, then jump 12V to the fuel pump motor terminals, or jump the fuel pump relay terminals (to get the pump running) and let it pump the diesel fuel out in the container...

As a precaution I'd change the fuel filter after this, fill the tank back up with clean gasoline, and give the car a good run... You can expect the engine to smoke and run bad for a little while, as there will still be a little diesel going through.

As for the cost to get it done, I really couldn't give you a straight answer... They could do it like I said or another way (drop the gas tank...) It's not that hard to do if you do it yourself or find someone you know who can do it or a good "backyard" mechanic, but I'm sure some of the shops out there could write up a nice repair bill for this...

May 08, 2009 | 1994 Nissan Maxima

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