changed my thermostat VN V8 Calais - been stuck open for a while, just got use to it. Now i am getting 12l/100 - before was 15 or so. Should of known. What a difference
wow that much? think i better get a thermostat for my car lol
Definately make a big difference. If the motor isnt warmed the ecu will run in open loop which is dead rich trying to warm the motor up.