Seriously people... how long do you all think you would have to idle to get enough cylinder wash to be a concern? You really think the cylinders are washing after the truck has been run at normal operating temp and then one you were to let it idle to keep warm? I personally think this whole cylinder wash issue is a grossly over-exaggerated concern. I'm not saying it can't happen, but think of the pressure our fuel system runs and how fogged the fuel gets in comparison to the older fuel systems. Maybe an issue in sub zero temps?

My truck idles what I think is quite a bit year round. Winter to warm up or keep warm, summer to keep cool and I never turn it off when fueling up. I also Idle before shut down so the EGT's are less than 300°F. I idle at least two hours a week on the average year round. I also only change my oil once a year or 25,000 miles whichever comes first. Never once have I had an issue with fuel in the oil as per the oil analysis.

 

I would say it's a problem below -10*....

 

Here is a great video showing what a CR injector looks like firing at 23,000 psi.

http://www.streetfire.net/video/cr-i...ter_717518.htm

 

Definitely agree with the price of fuel... But I see an awful lot of UPS trucks blowing blue or white smoke. I always wondered why, maybe this explains it?