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Old 09-11-2019, 01:35 PM   #1
TexasWReX
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Default 2016 WRX Running Rough High Knock

Mods: TGV Delete, EBCS, EGR Delete, Cobb Flex Fuel, DW Fuel Pump, tuned via e-tune with Brentuning.

Been driving the car for probably 15-20k miles with no changes. I filled up with straight 93 this morning and my ethanol monitor was showing around 13% ethanol because my last tank was a blend of E85 and 93 and was E55 according to the AP. I drove home from the gas station with no problems, about a five minute drive. About an hour later I go to leave my house and I start my car and get a super rough idle. I let it go for a few seconds and then it dies. I let it rest for a minute, check under the hood for anything obviously wrong and find nothing out of the ordinary. I start it again and more rough idle and it dies. Start it one more time and it smooths out. I'm late for work so I start driving to work and the accessport is registering all kinds of knock, like up in the 8's whereas I never see more than the occasional -2.81. DAM drops to 0.688.

My thought is I got a tank of some bad gas. I'm worried to keep driving it like that and guessing I may have to figure out how to drain the fuel tank and add in some better fuel. Any input?
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Last edited by TexasWReX; 09-11-2019 at 01:41 PM.
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Old 09-11-2019, 02:17 PM   #2
mxm64
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What is your fuel pressure at idle? What pump are you running?
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Old 09-11-2019, 02:25 PM   #3
TexasWReX
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Fuel pressure at idle was between 350-400 and itís a dw65c
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Old 09-19-2019, 11:13 AM   #4
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Fuel pressure at idle was between 350-400 and itís a dw65c
Did you get this resolved?
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Old 09-19-2019, 11:49 AM   #5
TexasWReX
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Resolved...turns out the Shell station had diesel in the underground tank for 93 octane. Had to get it towed to a shop and pump out the gas tank, flush out all the diesel, and refill with good gas. I'm supposed to be getting reimbursed by the insurance carrier for the gas station. It doesn't appear to have any lasting damage, knock is back to normal and DAM has returned to 1.000.
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Old 09-19-2019, 01:00 PM   #6
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Resolved...turns out the Shell station had diesel in the underground tank for 93 octane. Had to get it towed to a shop and pump out the gas tank, flush out all the diesel, and refill with good gas. I'm supposed to be getting reimbursed by the insurance carrier for the gas station. It doesn't appear to have any lasting damage, knock is back to normal and DAM has returned to 1.000.
Holy...****.. I can't believe your car even ran at all after that. I'd some how contact the EPA or something because i'm sure a ton of cars filled up with 93 from that gas station that probably ran into the same issue or worse.

Last edited by bizzlezx10r; 09-19-2019 at 01:19 PM.
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Old 09-19-2019, 01:25 PM   #7
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EPA does next to nothing in Texas. Issues like this TDA needs to be contacted, but more than likely they already know as that is likely how the store found out. Cross drops unfortunately happen more often than you want to know. All I can say is I hope you bought from a large retailer and not a mom and pop station as it will be easier to recoup costs from a retailer. Who will likely send the bill to the delivery company for the cross drop damages.
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Old 09-19-2019, 04:31 PM   #8
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Cross drops unfortunately happen more often than you want to know
Also to add, this is why it is always important to save gas receipts in case proof is needed.
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Old 09-19-2019, 05:49 PM   #9
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Also to add, this is why it is always important to save gas receipts in case proof is needed.
Lol.

Who uses cash for anything anymore let alone gas? How do you even fill up w gas?? Run back for change after overpaying? I guess some old schoolers still do, but you gave me a good chuckle.
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Old 09-19-2019, 08:42 PM   #10
GlarryHoodDIT
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Yeah, those gas stations sure can be tricky. Give someone money and then walk back to your car and pump your gas. Sure is easy to get lost along the way! I guess.
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Old 09-19-2019, 09:10 PM   #11
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Yes, very tricky if you want a full tank of gas. You have to walk to the attending crackhead and wait in line then pay, then walk back to car, then after done filling up walk back to the crackhead for the change (who wants change, for a payphone maybe?). Alot can happen in the meantime.. i can get lost, i can get shot, this is America, i dunno where you at. So yes, hella hard for me man thats why its funny.

On the other hand, it may be very easy for people who only have a 5$ (no choice) or those that have not heard of credit cards (often giving 5% back) or cant qualify for one.

Different strokes for different folks.
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Old 09-19-2019, 09:25 PM   #12
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Oh and thats not mentioning that one way i waste less time at a gas station and get paid 2$ on average per fill up to NOT use cash or talk to the attendant. So i get paid and have more time for whatever, family, hookers, video games.

So yea.. its actually harder and stupider than I originally thought man. Thanks for making me think real hard about it.

And to think that for a second there you had me thinking i was missing out on a good ole American custom.. pft.
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Old 09-20-2019, 09:52 AM   #13
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Originally Posted by Rexy18 View Post
Lol.

Who uses cash for anything anymore let alone gas? How do you even fill up w gas?? Run back for change after overpaying? I guess some old schoolers still do, but you gave me a good chuckle.
...You.. do know that when you fill up at a pump with your card it asks if you'd like a receipt...right?
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Old 09-20-2019, 11:12 AM   #14
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...You.. do know that when you fill up at a pump with your card it asks if you'd like a receipt...right?
Absolutely. I press no every time. Theres also cameras front and back as well as Chase immaculate credit record keeping one push of a button away.

Paper receipts are like paper money man, obsolete. Soon we will be paying with our phones like Chinese do already.

So yes.. still funny to me i cant help it. Do you have a receipt receptacle at home too? Organizer of sorts? God forbid you should have to prove something and they are all out of order, stay organized and prepared.
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Old 09-20-2019, 11:31 AM   #15
bizzlezx10r
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Absolutely. I press no every time. Theres also cameras front and back as well as Chase immaculate credit record keeping one push of a button away.

Paper receipts are like paper money man, obsolete. Soon we will be paying with our phones like Chinese do already.

So yes.. still funny to me i cant help it. Do you have a receipt receptacle at home too? Organizer of sorts? God forbid you should have to prove something and they are all out of order, stay organized and prepared.
Nope definitely not.

But you're bitching about going to the counter with cash just to run back to get change and a receipt is not even in the realm of what i was suggesting. It's good to cover your ass though in case Grandma Jenkins doesn't have cameras at every pump or Mohammad at BP is using technology from 1995.

Even if they did, 1. they're not going to dig in that much because you're too cool/lazy to hit "Yes" on a machine to get a receipt. and 2. A camera probably won't prove what octane you selected on the pump.

It's simple:
Print receipt, toss it out after a day or two after you notice your car is performing as it should. But based on your worries on "what might happen" you're probably thinking you might break your finger hitting the "Yes" button.

Also to add: Wtf does any of this have to do with your credit record?
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Old 09-20-2019, 11:48 AM   #16
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Nope definitely not.

But you're bitching about going to the counter with cash just to run back to get change and a receipt is not even in the realm of what i was suggesting. It's good to cover your ass though in case Grandma Jenkins doesn't have cameras at every pump or Mohammad at BP is using technology from 1995.

Even if they did, 1. they're not going to dig in that much because you're too cool/lazy to hit "Yes" on a machine to get a receipt. and 2. A camera probably won't prove what octane you selected on the pump.

It's simple:
Print receipt, toss it out after a day or two after you notice your car is performing as it should. But based on your worries on "what might happen" you're probably thinking you might break your finger hitting the "Yes" button.

Also to add: Wtf does any of this have to do with your credit record?
Ouch, he bites!

I gas at one station 99% of time. No mohammads, just your regular mill crackheads, or British, cant discriminate between the two cuz of the teeth.

Not worried about having no proof of being there at all, which is why i DON’T take a receipt. Worried about lowlifes hanging around gas stations, especially after sunset is a reality of where i live.

Didnt mean to upset you so much, especially since there isnt a designated safe place on this forum yet.

As far as credit score.. unless one is using cash there is no reason to need a receipt, ok? If you need proof you can print a receipt or show on your handheld spying device that has all the receipts. So i assumed you were not a redundant idiot who collects paper receipts and instead assumed you must be talking about ppl who use cash only, not credit cards. Clearer to follow now?

Last edited by Rexy18; 09-20-2019 at 11:56 AM.
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Old 09-20-2019, 11:58 AM   #17
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Wow. Let's keep the thread on track. GTFO with whatever beef and PM it away.
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Old 09-20-2019, 12:04 PM   #18
Rexy18
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This thread is done. Resolved. So dont thread on us.
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Old 09-20-2019, 12:28 PM   #19
bizzlezx10r
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Originally Posted by Rexy18 View Post
Ouch, he bites!

I gas at one station 99% of time. No mohammads, just your regular mill crackheads, or British, cant discriminate between the two cuz of the teeth.

Not worried about having no proof of being there at all, which is why i DON’T take a receipt. Worried about lowlifes hanging around gas stations, especially after sunset is a reality of where i live.

Didnt mean to upset you so much, especially since there isnt a designated safe place on this forum yet.

As far as credit score.. unless one is using cash there is no reason to need a receipt, ok? If you need proof you can print a receipt or show on your handheld spying device that has all the receipts. So i assumed you were not a redundant idiot who collects paper receipts and instead assumed you must be talking about ppl who use cash only, not credit cards. Clearer to follow now?
Not everybody fills up at the same gas station 99% of the time. The reasoning for the receipt is because it shows an actual breakdown as oppose to your handheld spying device that says "Costo - $43.81"

I suppose if something were to happen to your car due to bad gas you could always go back to gas station in question and flash your phone and hopefully, they can print you a receipt as proof. But that would cause you to get out of your car and go to the counter and if you're flashing a phone in their face saying their gas broke your shlt I don't see them being very helpful

Where the hell do you live that your local gas station is crawling with crackheads?
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Old 09-20-2019, 01:05 PM   #20
Rexy18
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Southwest.

It never crossed my mind that bad gas could ruin my car. But if it did, Mohammad or the attending Brit would not be the people i show the receipt to or argue with. I’d ask them who do i contact because i need compensation for blah blah.

Also, i forgot to mention that not only is it always the same station i am at but i also fill her up full each and every time then calc my mpg. Its e85 i am after, so thats why its only one station but before that it was Costco for 91oct. Havent been there in almost a year lol.

Been driving for 25+ yrs and never had an instance of bad gas like the OP, but then again i am a creature of habit and always gas up on my “regular” stations.
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Old 09-20-2019, 01:23 PM   #21
bizzlezx10r
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Southwest.

It never crossed my mind that bad gas could ruin my car. But if it did, Mohammad or the attending Brit would not be the people i show the receipt to or argue with. I’d ask them who do i contact because i need compensation for blah blah.

Also, i forgot to mention that not only is it always the same station i am at but i also fill her up full each and every time then calc my mpg. Its e85 i am after, so thats why its only one station but before that it was Costco for 91oct. Havent been there in almost a year lol.

Been driving for 25+ yrs and never had an instance of bad gas like the OP, but then again i am a creature of habit and always gas up on my “regular” stations.

Ahhh E85 so i get you're limited. I've never had issues myself either but I have heard some horror stories similar to the OP's.

Here is one of them:
https://wsbt.com/news/local/diesel-m...dollars-to-fix

Last edited by bizzlezx10r; 09-20-2019 at 01:54 PM.
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