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Old July 24th, 2014, 09:52   #835
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Join Date: Mar 2014
Location: Midwest - Chicago, IL (Northern Suburb)
Default Shell Diesel

I wrote to Shell and asked;
I'm confused. Volkswagen specifically states that putting biodiesel in your tank will void your warranty and only use diesel 2. Apparently many people have had their vehicles fail using anything over 5%. Unfortunately B10 or B20 (10% or 20% biodiesel) is all that's available in Illinois. The VW manual does state that if you live in Illinois they will honor the warranty anyway. My concern is that Illinois diesel will kill the car long term, after the warranty period. Why is Shell selling diesel that is less quality than other States? VW also says use no additives so adding anything apparently would not help with less quality diesel products. What does Shell suggest?
P.S. Some Shell stations have stickers on the pump that says "NOT a Shell branded product". Is this a disclaimer of quality?

This was their reply;

"Thank you for considering Shell to fuel your vehicle.

All Shell Diesel meets the ASTM D 975 Specification (see attached). All Shell branded diesel is blended to contain a max of 5% bio content (ie max B5) across the USA. If the retail dispenser is labeled 6%-20% biodiesel, it is not a Shell-branded fuel. The dispenser should have a label that states that it is not a Shell-branded product.

However note that each Shell station is independently owned and may elect to offer a different non-Shell biodiesel blend at their discretion. The diesel fuel dispenser is required to be properly labeled as to whether it is a Shell branded product as well as to the bio content, so please look for this labeling (and if any questions please discuss directly with the specific Shell station).

So, for example, if the retail dispenser is labeled 6%-20% biodiesel, it is not a Shell-branded fuel. So again, Shell retailers may choose to offer a diesel fuel that contains more than 5% biodiesel, but the dispenser should be labeled to indicate that "this is not a Shell-branded product," etc. Furthermore, the Federal Trade Commission requires that diesel containing greater than 5% biodiesel must be labeled with the 5-20% biodiesel label (B5-B20). Some sates (like Illinois, it is almost certainly 11% biodiesel, driven by the state tax incentive) have some tax incentive by selling more % of Biodiesel and which is why the states may differ on percentage of biodiesel blends they offer.

For the location of Shell diesel stations across the US, please refer to the following website which contains the locations of all Shell diesel stations as well as access to a mobile app for your use while travelling:

But the bottom line to what type of fuel Shell would suggest for your vehicle – Shell always recommends that you abide by your engine OEM's recommendation for the type of fuel that you should use in your vehicle.

We appreciate the opportunity to serve you and look forward to providing you with quality Shell branded products and service in the future.

We value your patronage and hope you will continue to choose Shell’s quality products. If you have additional questions, please contact the Shell Solutions Center at 1-888-GO-SHELL (1-888-467-4355) or send an e-mail to"
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