Rob.I live in florida that is why I use 10/30 oil the manual said it is ok to use.I thought I wasnt smoking either until a friend said "you know your smoking at the tail pipe" it was faint but it was smokingDo not use any heavier oil wieght than 10/30 I switch back to 5 / 20 in the winter....

Rob,I had a problem losing oil with Cat codes and misfire codes.I started using high mileage oils Quaker state 10-30 and I stopped losing oil.I was using about a quart a week.Now I use no oil at all.I change it frequenlty like about at 2500 miles.I have around 125,000 on my vibe (2004 4 cyl base) no...