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Fuels & Lubricants Discussion all about Fuels & Lubricants. synthetic oil, conventional oil, brands, change intervals, diesel grades, gelling and such debated items like that. Non TDI related postings will be moved or removed. This forum is NOT for the discussion of biodiesel and other alternative fuels.

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Old July 19th, 2012, 21:20   #1
FormerOwner
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Default Murphy USA

Guys I need some help / clarification...

Tonight, I stopped by my local Murhpy USA to fuel up my 2013 Passat TDI. For the FIRST TIME EVER, I saw a sticker on the pump that says something to the effect that the pump has somewhere between B5 and B20...

I pumped in 13 gallons... am I going to be OK or should I go somewhere else? I'm asking because I receive a 5 cent discount from here with my WalMart credit card.

I've read a lot of banter on here and I know that B5 is acceptable. I know what the latest rumors are about VW changing their minds and all.

What is the likelihood I'm going to have problems?

Thanks in advance!
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Old July 19th, 2012, 22:06   #2
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I found this chart on the Vortex... can someone shed some light on how I should read this properly?

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Old July 20th, 2012, 03:24   #3
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Hey... That's my chart.... Didn't realize it was on the vortex! Funny how the interwebs work!

The intent is to understand how much B100 or B20 you need to mix with straight D2 to get to 2-5% Bio mix ratio in order to get lubricating benefits without going over the max 5% recommendation.

Very simple to read: left hand column is how many gallons of D2 you used. The other columns are how much Bio you put in. So if you put a quart (32oz) of B100 in with 10 gallons of D2, you'd have 2.4% Bio in that tank.

Intended to be a simple quick reference guide that can be used at the island while you mix and fill. Glad to see it being used!


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Old July 20th, 2012, 06:58   #4
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Thanks Maddog! I thought it looked like a proportion.
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Old July 20th, 2012, 07:47   #5
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Here's the link to the original thread introducing the table... it includes an updated version from the one posted here: http://forums.tdiclub.com/showthread.php?t=327822
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Old July 20th, 2012, 15:14   #6
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Well I went to my local Sam's club today. No mention of Biodiesel blending on the pumps... topped off about a gallon max. When I get down to 1/4 tank... time to fill up with regular D2 once again.

If Sam's starts using BIO... then off to Kroger (who have the exact same pricing points as Murphy and Sam's)!
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Old July 27th, 2012, 12:28   #7
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I went to my local Walmart to fill. Went into the fueling ofc and asked who their supplier was. "we get different trucks everytime." OK, and who are they bringing it from. She pulled out their last delivery receipt. EXXON. did the same at my local Kroger. EXXON. Just go up and ask to see who they are getting it from.
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Old July 27th, 2012, 16:44   #8
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@Rual... that's all well and good but I can't have >5% Bio in my Passat... thus the premise for my thread.
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Old July 28th, 2012, 05:16   #9
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If I had to worry about this issue, my interest in buying a TDI would end. Period; I just wouldn't do it. And if I went down and put diesel in my car at my friendly Super Pantry (Mobil) and something happened to the fuel system, I'd expect VW to fix it on their dime. I'm not about to trek all over looking for the right fuel, or play junior chemist mixing and matching stuff and putting it in my tank. VWAG would be facing huge litigation problems if this had any reality, since they are selling cars that have to be filled up at any gas stations selling diesel, many of which have no indication of what diesel formulation is being pumped. My conclusion: VW isn't concerned about what fuel is being dispensed, in spite of their 5% admonition, so why should I be?
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Old July 30th, 2012, 09:54   #10
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@Rico... Thanks for your input... the problem has been rectified.
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Old August 1st, 2012, 10:44   #11
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Quote:
Originally Posted by Rico567 View Post
...VWAG would be facing huge litigation problems if this had any reality, since they are selling cars that have to be filled up at any gas stations selling diesel, many of which have no indication of what diesel formulation is being pumped. ...
Note that ASTM spec D2 can have up to 5% biodiesel in it and no label is required. Anything over 5% needs to be labeled in TX, and I'd be surprised if that wasn't the case elsewhere.

I've been in correspondance with Murphy USA on their 6 to 20% biodiesel being too high for any of the European diesel vehicles (and some US as well) and haven't gotten a sensible answer from them yet.
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Old August 1st, 2012, 10:56   #12
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FWIW, no markings on the Murphy USA near me. Assuming it is <B5 or straight D2.
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Old August 1st, 2012, 11:12   #13
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Originally Posted by tditom View Post
Note that ASTM spec D2 can have up to 5% biodiesel in it and no label is required. Anything over 5% needs to be labeled in TX, and I'd be surprised if that wasn't the case elsewhere.....
It IS a federal mandate for any pump with >B5 to be labeled as such:
http://www.opisnet.com/market/sample...iesel_regs.pdf
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Old August 1st, 2012, 11:24   #14
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That's good to know. I was unaware. Thanks!
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Old August 5th, 2012, 18:03   #15
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Stopped at Murphys today in St Cloud, FL just south of Orlando on 192 and their diesel pump had the Biodiesel 5%-20% sticker too.
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