This has jumped a 2.8L diesel Chrysler and a 2.0L Renault Scenic many times until we got round to replacing the battery. I look like a hero, wife happy - great! Friends have looked on in disbelief that it is big enough to do the job and then vowed to buy one themselves as they see how easy it is. The case zip isn't the best designed but don't let that put you off, brilliant product.