Hello dear forum community… I come from the Mazdaforum but I have to get a Volvo S60 in a short time… Since I have already converted my Mazda to gas I wanted to do this again *g* So the following. To make sure that I don’t make any MOtor damage or any other damage to the valves or valve seats I wanted to ask for safety which engine from Volvo has hardened valves or valve seats for this model for gas operation. Engine power and Hubra I would be interested in that. I thank you already in advance