A question, if a dealer with a 10 year old vehicle, he writes is ready to give 12 months warranty, is that somehow a positive sign, or can one wipe off the poppers with such a guarantee in case of doubt ?http://goo.gl/d2LQ4j actually it is cheap compared, on the other hand it was the only petroler (only looked for benziners and switching drives) Or is that to generate interest, because he has to go down anyway with the price, but then of course ohn e Guarantee ?