Fuel mileage from different brands of fuel. - Ford Powerstroke Diesel Forum

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post #1 of 17 Old 07-26-2012, 08:15 PM Thread Starter
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Fuel mileage from different brands of fuel.

I took a trip this week and the lie o meter was showing 20.5 on the way there.I had fueled up before I left at Murphy at Walmart.On the return trip I stopped at an Exxon station to fuel up because it was 22 cents cheaper per gallon than at home.The lie o meter was showing 23.5 on the way home.I hand calculated the mileage when I filled up at the Exxon and the meter is .5 off on the mpg.If there is that much difference in fuel I will have to find an Exxon near home with diesel.
This was the best mileage I have ever got on the truck which is stock.The trip was on secondary roads with speed limits from 35-55mph.

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post #2 of 17 Old 07-27-2012, 04:35 AM
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The Wawa (local convenience store chain) diesel that I normally get has a cetane rating of 40, which my truck does not seem to like. It's cheaper, but consistently lower mpg than the other station I fill up at. No additives, similar mix of driving. Not all fuels are equal.

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post #3 of 17 Old 07-27-2012, 05:07 AM
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I absolutely believe you will get different mileage from brand to brand. I also believe that the "cheap" brands like Murphy water their fuel down to be able to sell it for less. You get what you pay for. To me the brands that my truck seems to like best and I look for when fueling are in this order: Conoco, Texaco, Exxon. I avoid Murphy, Shell, Chevron

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post #4 of 17 Old 07-28-2012, 07:43 AM
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It's Exxon, Sunoco, or texaco for me in that order. If you read about the bosch hpfp they are meant to run on a minimum cetane of 46 (European standard) our is 40. I use a cetane booster with each fill up. I get regularly 20-21 mpg high way as long as I keep it under 80.


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post #5 of 17 Old 07-28-2012, 08:27 AM
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Texaco and Chevron are the same. Mobile 1 and Exxon are the same.


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post #6 of 17 Old 07-28-2012, 12:16 PM
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Guys, when you buy diesel (or gasoline for that matter) of a particular "brand", all that means is you are getting that brand's additive pkg, no more no less - you may be getting their diesel production, but you may be diesel made in an independent or other brand refinery. I work in refineries and have been responsible for gasoline/diesel/jet production, sales, distribution, etc.
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post #7 of 17 Old 07-28-2012, 12:28 PM
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Like RCF said the only differance is the additive package. I've worked in the petro-chemical Industry for over thirty years and when a particular refinery is shutdown for regular maintenance it is very common for a different company to supply the first companies filling stations and other contracts.

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post #8 of 17 Old 07-28-2012, 01:28 PM
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I also agree, I work in the refined products pipeline industry and many pipelines ship the diesel as a fungible product. This means that the base fuels meet the same specifications and the only difference is the additive packages at the rack.


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post #9 of 17 Old 07-29-2012, 07:10 AM
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Yah the same goes for dino oil, refineries make a base lube oil (which is also shared between different refinery companies) and depending on what brand of oil, Motorcraft for example, the refinery will put in an additive package that was agreed upon as per the contract. So there really isn't that much difference in dino oils other than the amount of detergent, dispersants and oxidation additives.


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post #10 of 17 Old 07-29-2012, 04:17 PM
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Quote:
Originally Posted by Ford:Excelling all others View Post
Texaco and Chevron are the same. Mobile 1 and Exxon are the same.


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Beat me to it

A lot pilot truck stops use Chevron fuel.

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