davidvercher
Member
Hey Guys, Have a couple of questions? Dealer told me to only run off-road diesel because the road diesel (Yellow) has Ethanol mixed in and can cause problems. Is this a big deal with the new Tier 4 engines. I know ethanol goes bad a will gum up if not used. Also, he told me not to use 4wheel drive unless you need it. He said leaving it in 4wheel drive running down the road can cause it to overheat and damage the front end. Is this true?