Without any modifications I switched to new soybean oil for fuel (about $2.20 a gallon at Costco). The price attractive yes, but I wanted to do it for pollution reasons (I live just outside a National Park) and to know my driving doesn't contribute to the various situations this country and or some of its businesses gets into because of oil.

I have searched for the answer to my question but was not successful.

Does soybean oil cause issues with any of the rubber fuel components (hose, valves, seals)?

Thanks Don

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1980 300TD-T (82 Turbo and Trans) 159,000 Miles "Jackie-O"
1983 300SD 272,000 Miles "Aristotle"
1987 Jeep Wagoneer Limited - keeps the MB's off the ice and out of the snow
1994 BMW 530it