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Gasoline Into Diesel Truck - Oops #4503219
08/31/17 11:00 AM
08/31/17 11:00 AM
Joined: May 2005
Posts: 2,201
Toronto, Canada
George7941 Online content OP
George7941  Online Content OP
Joined: May 2005
Posts: 2,201
Toronto, Canada
Subject vehicle is a 1999 Freightliner FL70 with the Cummins ISB, equipped with a VP44 distributor injection pump. Driver calls me yesterday evening, he is at a gas station and pumped in 2 litres of gasoline into the tank and stopped when he noticed his error. Tank has approximately 60 litres of diesel in it.

Since gasoline is lighter than diesel , I figured the gasoline would mostly stay on top and not get picked up by the transfer pump. I told him to carefully drive back to home base which was about a mile away. I went and pumped out 18 litres of fuel from the top of the tank after the truck had been sitting for about two hours, added about 3 litres of TCW3 oil for lubricity and told the driver to fill up before using the truck again and called it a day.

The only thing I could have done better would have been to have gone directly to the gas station and pumped out some fuel from the top (or all of the fuel). But it was rush hour and it would have taken me an hour to get to the gas station and that busy gas station in the middle of the city would not appreciate a big truck being parked there for an hour plus.

So far the truck has not exhibited any symptoms from having been subjected to this abuse.

Anything else I could have done?


2006 GMC Sierra 4.3l, NV3500,G80 , Mobil 1 5W30, Dexcool.
1987 BMW R80 - sold
2015 Honda CBR300R

Staying out of the right lane a lot.
Re: Gasoline Into Diesel Truck - Oops [Re: George7941] #4503222
08/31/17 11:03 AM
08/31/17 11:03 AM
Joined: Feb 2013
Posts: 10,699
Phoenix, AZ
Nick1994 Offline
Nick1994  Offline
Joined: Feb 2013
Posts: 10,699
Phoenix, AZ
I wouldn't have done anything to it besides fill it up the rest of the way with diesel.


2015 Hyundai Sonata 2.4L 84k Mobil 1 AFE 0w30 & OEM
2000 Toyota Camry 2.2L 230k Valvoline 5w30 & Fram Ultra
1996 Jeep Cherokee 4.0L 147k Mobil 1 HM 10w40 & Fram Ultra
Re: Gasoline Into Diesel Truck - Oops [Re: George7941] #4503264
08/31/17 11:37 AM
08/31/17 11:37 AM
Joined: Jan 2017
Posts: 296
Ontario, Canada
newbe46 Offline
newbe46  Offline
Joined: Jan 2017
Posts: 296
Ontario, Canada
I think a little gasoline in a diesel engine is fine but not vice versa. I've seen Wold War II documentary about the Russian troops putting vodka in the diesel fuel tank to help the engine starts easier. I think gasoline will have the similar effect.


2003 E46 M3 Convertible
2004 Odyssey EX-L
2004 Impreza TS Wagon
Re: Gasoline Into Diesel Truck - Oops [Re: newbe46] #4503275
08/31/17 11:45 AM
08/31/17 11:45 AM
Joined: May 2005
Posts: 2,201
Toronto, Canada
George7941 Online content OP
George7941  Online Content OP
Joined: May 2005
Posts: 2,201
Toronto, Canada
Diesel is an oil and lubricates the insides of the injection pump. Gasoline does not and large amounts will certainly damage the pump.

On the latest diesels, filling up with gasoline can result in a $20000 bill because so many expensive components have to be replaced


2006 GMC Sierra 4.3l, NV3500,G80 , Mobil 1 5W30, Dexcool.
1987 BMW R80 - sold
2015 Honda CBR300R

Staying out of the right lane a lot.
Re: Gasoline Into Diesel Truck - Oops [Re: Nick1994] #4503276
08/31/17 11:47 AM
08/31/17 11:47 AM
Joined: Jul 2014
Posts: 534
Wisconsin
Srt20 Offline
Srt20  Offline
Joined: Jul 2014
Posts: 534
Wisconsin
Originally Posted By: Nick1994
I wouldn't have done anything to it besides fill it up the rest of the way with diesel.

X2 the vp-44 wouldnt have even noticed.

my wife FILLED my pickup truck up with gas. And it was nearly empty, because she waits until it fuel range says 0 miles til empty. She called me before starting it. I told her to start it and drive it away from the pumps and find a place to park. I went and pumped out 32 or so gallons of gas and filled it up with diesel. Truck has common rail high psi injection.

Re: Gasoline Into Diesel Truck - Oops [Re: George7941] #4503290
08/31/17 11:55 AM
08/31/17 11:55 AM
Joined: Jun 2002
Posts: 19,235
Iowegia - USA
MolaKule Offline
MolaKule  Offline
Joined: Jun 2002
Posts: 19,235
Iowegia - USA
I don't think a 30:1 ratio of diesel fuel to gasoline would have had much effect.


Reading is fundamental; understanding is not a given ability.
Re: Gasoline Into Diesel Truck - Oops [Re: George7941] #4503292
08/31/17 11:56 AM
08/31/17 11:56 AM
Joined: Feb 2015
Posts: 2,199
Slovenia EU
Kamele0N Offline
Kamele0N  Offline
Joined: Feb 2015
Posts: 2,199
Slovenia EU
Put some 2stroke oil into the tank....vp44 is a quite sensitive pump (google audi vp44 problems)


2011 Hyundai i30 1.4 CVVT Shell Helix Ultra 5w40
1997 Toyota Landcruiser KZJ95 3.0 TD Shell Rimula R6M 10w40
Re: Gasoline Into Diesel Truck - Oops [Re: Kamele0N] #4503303
08/31/17 12:04 PM
08/31/17 12:04 PM
Joined: May 2005
Posts: 2,201
Toronto, Canada
George7941 Online content OP
George7941  Online Content OP
Joined: May 2005
Posts: 2,201
Toronto, Canada
That is what TCW3 oil is - 2 stroke oil. I have been using 2 stroke oil in this truck since new and still have the original injectors at 15000 hours.


2006 GMC Sierra 4.3l, NV3500,G80 , Mobil 1 5W30, Dexcool.
1987 BMW R80 - sold
2015 Honda CBR300R

Staying out of the right lane a lot.
Re: Gasoline Into Diesel Truck - Oops [Re: George7941] #4503341
08/31/17 12:45 PM
08/31/17 12:45 PM
Joined: Feb 2013
Posts: 10,699
Phoenix, AZ
Nick1994 Offline
Nick1994  Offline
Joined: Feb 2013
Posts: 10,699
Phoenix, AZ
Originally Posted By: George7941
Diesel is an oil and lubricates the insides of the injection pump. Gasoline does not and large amounts will certainly damage the pump.

On the latest diesels, filling up with gasoline can result in a $20000 bill because so many expensive components have to be replaced
2 liters of gasoline in a 75 gallon tank is almost nothing.


2015 Hyundai Sonata 2.4L 84k Mobil 1 AFE 0w30 & OEM
2000 Toyota Camry 2.2L 230k Valvoline 5w30 & Fram Ultra
1996 Jeep Cherokee 4.0L 147k Mobil 1 HM 10w40 & Fram Ultra
Re: Gasoline Into Diesel Truck - Oops [Re: Nick1994] #4503367
08/31/17 01:07 PM
08/31/17 01:07 PM
Joined: May 2005
Posts: 2,201
Toronto, Canada
George7941 Online content OP
George7941  Online Content OP
Joined: May 2005
Posts: 2,201
Toronto, Canada
The $20000 scenario is with the latest pickups where the tank is filled with gasoline and the truck driven to failure. The CRD high pressure pump and injectors are very expensive.


2006 GMC Sierra 4.3l, NV3500,G80 , Mobil 1 5W30, Dexcool.
1987 BMW R80 - sold
2015 Honda CBR300R

Staying out of the right lane a lot.
Re: Gasoline Into Diesel Truck - Oops [Re: newbe46] #4503378
08/31/17 01:14 PM
08/31/17 01:14 PM
Joined: May 2005
Posts: 10,279
ROCHESTER, NY
Char Baby Offline
Char Baby  Offline
Joined: May 2005
Posts: 10,279
ROCHESTER, NY
Originally Posted By: newbe46
I think a little gasoline in a diesel engine is fine but not vice versa. I've seen Wold War II documentary about the Russian troops putting vodka in the diesel fuel tank to help the engine starts easier. I think gasoline will have the similar effect.


I have heard just the opposite!

Last edited by Char Baby; 08/31/17 01:15 PM.

"Retired"
-----------------------------------

'80 Firebird FORMULA V8/4bbl-purchased "NEW"
'15 Nissan Altima 2.5 SV
'15 Honda Civic LX(17K)
Re: Gasoline Into Diesel Truck - Oops [Re: George7941] #4503382
08/31/17 01:23 PM
08/31/17 01:23 PM
Joined: Jun 2003
Posts: 17,351
Deplorable in apple valley, ca
Chris142 Online content
Chris142  Online Content
Joined: Jun 2003
Posts: 17,351
Deplorable in apple valley, ca
The gas will blend with the diesel. It wont float as you suggested


02 Wrangler durablend 10w40
87 F250 traveler 15w40
04 Tahoe super-s 10w30
Z400 castrol T 10w40
Can am maveric edge 5w40
57 case tractor 15w40
Re: Gasoline Into Diesel Truck - Oops [Re: George7941] #4503405
08/31/17 01:50 PM
08/31/17 01:50 PM
Joined: May 2012
Posts: 5,381
Fort Lauderdale, FL
DoubleWasp Offline
DoubleWasp  Offline
Joined: May 2012
Posts: 5,381
Fort Lauderdale, FL
We've handled quite a bit of "gas in diesel" scenarios.

Even when run on a mix to shutdown, we just pump the tank empty and start. Never an issue.

Gas and diesel do mix very well.


07 Lincoln Navigator M1 0w-40/FU
68 Charger R/T / Supercharged 440 VR1/DBL7349
07 Ram 3500 4x4 / Cummins 6.7 /DBL7349
17 Maserati GranTurismo Cabrio
Re: Gasoline Into Diesel Truck - Oops [Re: George7941] #4503417
08/31/17 01:59 PM
08/31/17 01:59 PM
Joined: Apr 2017
Posts: 1,480
Ontario, Canada
mightymousetech Offline
mightymousetech  Offline
Joined: Apr 2017
Posts: 1,480
Ontario, Canada
I know people that put a couple liters of gas in with their diesel intentionally in the winter to help it start easier.


Mighty Mouse Tech
BMW Tech, Former Acura Tech
2010 Civic Si Castrol 0W40, Redline MTL
2013 BMW 135i M Sport Edition Castrol 0W40, Redline MTL
Re: Gasoline Into Diesel Truck - Oops [Re: George7941] #4503423
08/31/17 02:02 PM
08/31/17 02:02 PM
Joined: Feb 2015
Posts: 2,199
Slovenia EU
Kamele0N Offline
Kamele0N  Offline
Joined: Feb 2015
Posts: 2,199
Slovenia EU
Yes....that worked for russian T34...up to the german golf mk.2 with 1.6D engine....

I would not play that with "modern" and especially modern diesels


2011 Hyundai i30 1.4 CVVT Shell Helix Ultra 5w40
1997 Toyota Landcruiser KZJ95 3.0 TD Shell Rimula R6M 10w40
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