[C10 - C90 Bill]

Originally Posted by Airdirect

In my experience, the 53 series are much less prone to leak oil. The only oil leak I see is a few drops from the blower drain. This only happens when it sits overnight. I have left it idle overnight during cold weather and do not have any drips under it.

I'm not sure if the 4-53 or the 4-53T would be different, and I hate to say this, but I learned years ago not to let a 53 Series idle for a long period of time. I know of an oil company that would start their 6-53's early in the morning and they ended up having to rebuild what I believe was the top end on all their trucks. I don't even like my 2-53 to idle long at all, once it has hit operating temperature. I believe it has to do with the effects of low Oil Pressure. How does your Oil Pressure look at a long idle?