Putting gas in a diesel tank - misfuel adventure

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I could elaborate a lot on this even more, but I'll try to keep it brief.

Car: 2012 VW Jetta SportWagen with almost 20K

Since the car was new, I've added 1 quart of B100 and ~5oz of Diesel Kleen to every fill-up, no exceptions. I'm well versed in the HPFP drama and this is my means of mitigating the issue.

While on a long drive up the east coast with my wife and 14 week old daughter, I pulled over to fill up in the middle of nowhere New Jersey, on a Sunday evening, on Mother's day. As you probably know, in New Jersey the law requires attendants to fuel gasoline vehicles. I thought it also applied to diesel vehicles though it seems it does not.

Scenario:

1) car tells me I have a 20 mile range
2) I pull off to the nearest gas station
3) before I pull up to the pump, I jump out and add 1 quart of B100 and 5oz of Diesel Kleen
4) I get back in, pull up and tell the attendant to fill it with diesel
5) baby is crying, so I get out to grab her toys from trunk
6) I see the attendant putting regular unleaded gas in the car and scream, "STOP!" As well as some other choice words.
7) after a tiff where he insists I said "regular" and I insist I said "diesel", we both push the car away from the pump.
8) I check the damage: 6.133 gallons of gas had been pumped into the car
9) I Googled the nearest VW dealer: over 100 miles away. The local wrecker quotes me $400 to flat-bed it to them.
10) I tell the attendant to call the owner and have him open the garage.
11) owner and I pull the rear seat, open the fuel tank, and pump nearly 8 gallons of diesel/B100/gasoline out of the car using a pneumatic pump
12) I added 1 quart of B100 and 1 gallon of diesel from a jerry can, then drive the car around the lot to the diesel pump (about 200 yards - felt like an eternity)
13) attendant fills it with 12.9 gallons of diesel
14) I drive it a mile and get Diesel Kleen meant to treat 40 gallons and dump the whole thing in.

As I didn't start the car, the only gasoline that could could have gone through the HPFP was any lingering remnants in the tank which was diluted with 1) at first: a gallon of D2 and a quart of B100 2) 2 minutes later: 13.9 gallons of D2 and 1 quart of B100

Long story short, I think I'm good. Thoughts?
 
I think you'd be okay with such a minuscule amount of gas still being left in the tank.

Very lucky (for both you and the attendant) that you were able to get all of the gas pumped out before you started driving it.

That could have got expensive, quick!

In CNY, full service gas stations aren't that popular, but the few that are around ... we all have some good stories of pump jockies going bad.

I once had a pump jockey (who does this 40 hours a week) turn my gas cap CLOCKWISE for about 5 minutes before I told him the righty tighty lefty loosey deal ...
 
I've never owned or had anything to do with diesel vehicles, but I'd say you are good - the actual amount of gas that went thru the engine would have been miniscule, AND you have an additive to further protect the fuel system.
 
I thought the diesel in the gas was the big no no - Diesel just wont fire - correct? Self ignition is to high on gas? I ran a gas station in the late 70s and early 80s but we didnt have diesel pumps.
Maybe the real issue with gas in a diesel is withinadequate the high pressue injector pump lubrication ( on top of the obvious no start issue) ... You Got me here! Time to learn something.
 
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Don't worry.

There will be no harm at all to your engine. Had many dieselcars filled with gas at work and only 2 actually had engine damage(stuck highpressure pump with following snapped timing chain)

You did it perfect to prevent damage. Actually if it is really cold and the diesel freeze and get stiff of parafin. You can add a bit of gas to the diesel.
 
Originally Posted By: ARCOgraphite
Maybe the real issue with gas in a diesel is withinadequate the high pressue injector pump lubrication ( on top of the obvious no start issue) ... You Got me here! Time to learn something.

That's the real issue. The high pressure fuel pumps in modern common rail diesel engines are intolerant of low lubrication. Older, LSD (Low Sulfur Diesel) did a better job lubricating pumps and injectors than modern ULSD (ultra-Low Sulfur Diesel). Lubricity additives like biodiesel (regarded as among the best) and off-the-shelf products like Power Service, Diesel Kleen, Stanadyne, etc. are used as a mitigating factor.
 
Thanks to all for the replies! I think I'm good, but given the failures of VW Common Rail HPFSs even under nominal situations I remain a bit paranoid.

Doing a bit of math:

The Jetta has a 14.7 gallon tank - 1 gallon of D2 - 12.9 gallons of D2 - 0.25 gallons of B100 = 0.55 gallons of "other" left in the tank.

Assuming worst case (the 0.55 gallons of "other" is 100% gasoline), then ~4% of the fuel tank is still gasoline. I've put 125 miles on the car since the incident with no noticed or ill effects. The OBDII scan I did brought up no codes. I'll continue to dilute the remaining gasoline, if there is any, by topping off the tank a few times.
 
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Sounds like a non issue at this point.

However as a caring BITOGer, I noticed you have factory fill listed in your Sig, with 20k on the vehicle....?
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I once got screamed at in New Jersey for stopping and pumping my own gas--I've done it in numerous other states!

I once worked with a guy who had been fired from a good paying job. When I asked why, he said his boss asked him to fill up his diesel car and he put in gas by mistake. He didn't know better and drove it. Enough said!

John
 
Originally Posted By: Kuato
However as a caring BITOGer, I noticed you have factory fill listed in your Sig, with 20k on the vehicle....?
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Thanks for the concern! Actually, it was changed at 10K by the dealer with the Castrol that VW requires. So, dealer fill?
 
In 2012 the HPFP issue has been mitigated fairly well. They should have installed the lasted revised design but like you said it pays to be cautious.

Not cycling the key(which turns on no less than 2-3 electric pumps) and pumping the tank almost dry and then refilling with diesel/B100/Additive you should be safe.

I wouldn't worry to much the extra dose of additive & B100 should overcome any lubrication issue.

You can pump your own diesel in NJ as it is not against the law. Finding a station that understands this is difficult though.

My very last time in NJ they only had LSD which would likely ruin your DPF/NOx cat in short order. He also spilled it all over the side of my car.

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I would have pushed the vehicle to the diesel pump!

Not blaming you, but it seems like you pulled up to the wrong set of pumps? Or why did the vehicle have to go 200 yds to diesel pumps?
 
My dad manage somehow to put gas into his diesel car then drove it about 3 miles until the car stalled and only then he realized he screwed up at the pump.
A guy from the dealership came right there and drained the whole fuel system, changed the fuel filter and all was fine and dandy.

You should be absolutely fine and be more worried about driving the car on fumes like you did...modern fuel pumps just hate running on an empty fuel tank
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They should make filler neck opening triangular vs square for gas vs diesel to avoid this type of mishaps :-)
 
Originally Posted By: Vikas
They should make filler neck opening triangular vs square for gas vs diesel to avoid this type of mishaps :-)


I think the nozzle size is different. You can put gas in a diesel but not diesel in gas ... I think?
 
Originally Posted By: Donald
I would have pushed the vehicle to the diesel pump!


It was uphill at enough of an incline that it wasn't gonna happen even with all three of us pushing!

Originally Posted By: Donald
Not blaming you, but it seems like you pulled up to the wrong set of pumps? Or why did the vehicle have to go 200 yds to diesel pumps?

The garage was downhill from the pumps. The diesel and gas hoses came out of the same pump.
 
Originally Posted By: Andy636
You should be absolutely fine and be more worried about driving the car on fumes like you did...modern fuel pumps just hate running on an empty fuel tank
wink.gif


I'm never listening to my wife again. She kept pushing to keep driving as the baby sleeps when we move, she wakes up when we don't...

You know what else babies don't like? Being stranded for 3 hours!
 
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