Can someone please once and for all tell me what the best octane and oil is to use? I live in michigan and will be driving my 300c all year round.....any suggestions?
Its not necessary to use synthetic motor oil in the 300C. It is required in the Crossfire. I chose to use synthetic because I live in a seasonal environment were temps range from 20's-30's in winter to 90's-100's in summer. So synthetics are a great choice. There is an entire thread dedicated to the syntetic advantage, check it out.JPB68 said:my dealer said not to use synthetic. Only in the crossfire
Why?? Why is the question. Since it is a proven FACT that synthetic oil is VASTLY SUPERIOR, why should one not use it???Hemilover said:Just had a oil change this week and asked service manager about synthetic oil and he said its not recommended in the "C" and don't use it. So I didn't!