Hello! Ride a V70 Bifuel CNG, 2003 Bj. Used the car with approx. 120 000 km and now already exceeded the 150 000 mark. Runs perfectly. However, about 1 times a month the engine control light lights up – always at warm start! disappears after some start operations again. Have read out errors: Ignition breakers First you have replaced ignition coil. At last service they informed me that it was probably on the fuel filter. Unfortunately was not so, because about 5 weeks after service the lamp was back again. Has maybe someone know what that could be. Need on 10000 km good 2 liter engine oil. At 140000 km service was filled fully synth. 5 W 40. Consumption has not really changed however. Is such a consumption for my elk (CNG) normal or I have to worry about. For helpful things I am grateful, KLV70 Bifuel