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That video is misleading... The sludge is from lack of maintenance and or the engine not getting up to operating temperature to burn off moisture. He claims 2000 miles the oil was changed but I don't believe it. Oil doesn't get that nasty in a healthy engine if changed every 2000 miles. I have been running E85 since 2017 and my engine nor any other engine I have seen looks like that after extended E85 use.
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2016 NFG SS A8/Whipple 2.9/Fuel System/Flex Fuel |