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Old 05-03-2013, 06:02 PM   #15
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I wonder how many diesel RV's (front engine mostly, I know of no rear engines that fuel in the rear but there might be some) only fuel in the rear on the driver side? So the clueless RV'er can make such a mistake. Of course More than 99% of diesel tractors have saddle tanks and fuel on both sides, so there's no "good" side to put the tank on. Guess I'll have to go with my assertion that the RV industry execs are the ones who are clueless.

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Old 05-03-2013, 07:59 PM   #16
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My 2011 Itasca 42 QD has the DEF tank on the drivers side so I fuel at P/FJ when I need DEF. Very easy, just swipe rewards card and credit card once for fuel and DEF.

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Old 05-03-2013, 08:17 PM   #17
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Here's a question about DEF. when it dries in a container and crystallizes , does it re dissolve when you add new fluid. I carry an empty container but have yet to fill it from the pumps. Here again I'm one of those who does about 9,000 miles per year, so not a super big issue.
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Old 05-03-2013, 08:31 PM   #18
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Yeah, it seems to dissolve right away. The only concern I'd have is that by refilling with DEF, you now have a higher concentration of Urea in the mix than you would have right out of the pump. I know there's a specific concentration required to call it DEF and Cummins implies that if you just add water or make it off spec, the engine will know and de-rate. Although they don't say how much out of spec this has to be for this to happen, I don't want to experiment and get stranded in some out of the way place. I'd rinse the jug out with water and drain completely before refilling. At least until we can find more info on when the engine de-rates.
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Old 05-03-2013, 09:25 PM   #19
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Twomed and others had you actually taken time to read my original post you would have noted that I was careful to note that I only pull into the the fuel island from the wrong side when at a truck stop is not BUSY and that I start looking early in order to find a truck stop that is NOT BUSY. So, please read carefully before you condemn.

That is all.
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Old 05-04-2013, 08:15 AM   #20
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Diesel pushers have the DEF tank on the passenger side because the exhaust is on the passenger side and DEF is injected into the exhaust side of the engine. Trucks have their exhaust systems normally on the driver's side so their DEF tanks are on the driver's side. Since TRUCK STOPS sell fuel for trucks the DEF pumps are located on the driver's side of the fuel island. When I have to buy DEF I just use the pump in the next lane on the right and stretch the hose to my DEF tank. Since this only takes a few minutes to fill 10 or so gallons most truckers don't mind.

As a side note, when is Flying J going to add DEF pumps to their RV lanes????
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Old 05-04-2013, 06:13 PM   #21
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I have found the best way for me to fill my DEF tank at a truck stop, while entering the "wrong way", is to take an orange road cone, that I carry onboard, and put it behind a single truck rig that is fueling. That way you will not get a bunch of trucks in line trying to get to the pump that you are trying to enter. Once I fill my tanks, I pickup the cone and leave. Bulk DEF at a truck stop is a lot cheaper than the 2 1/2 gal jugs and a lot less messy.

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