Over Drive
I have always wondered if I put an overdrive unit on my RV will do any good. If it gives you a 10% decrease in RMPs does it give you 10% better gas mileage? Or just 2 or 3% better MPGs. Would it be wo...
Forum Discussion
I always wondered about the over/under drives. I keep getting ads wanting me to buy them. Yes, I do know that you can have to high of a gear that will lug down a motor and cause it to use more fuel. This could be good for smaller rigs like the 25 to 28 footers. I just couldn't find anyone talking about it that wasn't someone wanting to sell them. And we all know that they will not tell you the downside of it. I would like to have heard from someone who has it and how it worked out. Thank for answering my question.
