Search results

I have a new Cat C9 with the allison transmission and I was wondering what is the best way to break it in? When would you do the first oil change and how often after the 1st one? I have many different opinions but mainly from dealerships. I have been told everything from every 11,000 miles up...

I was wondering if anyone knows why after 8 hours of idling when I leave the truck stop, it looks like I am leaving a smoke screen behind me for about 5-10 minutes. I have tried just slow idling, idling at 1000 rpm...it doesn't make a difference. The truck has about 97,000 miles and all pm's...