09-30-2012, 05:33 PM
Tom, I run K+N's in my diesel pick-ups. My opinion is that they can offer a slight though not measureable increase in performance/economy . The ability to clean rather than replace saves money over time. The downside is that the cleaning/oiling "kit" is not cheap and the cleaning process is quite messy and time consuming. The size of the filters on the larger diesel engines would compound the mess. It is possible that the K+N would offer more worthwhile performance on equipment operated in dusty conditions.
It seems that the K+N has less restriction when new but you can actually see through the filter medium so there are those who feel that the filtering may not be adequate. As the dirt builds up they actually filter better. My trucks do not run in dusty conditions so with periodic cleaning they rarely cause much air restriction.
It will be interesting if Dean Patterson (or anybody else) can install one and track fuel consumption as the dirt builds up.
It seems that the K+N has less restriction when new but you can actually see through the filter medium so there are those who feel that the filtering may not be adequate. As the dirt builds up they actually filter better. My trucks do not run in dusty conditions so with periodic cleaning they rarely cause much air restriction.
It will be interesting if Dean Patterson (or anybody else) can install one and track fuel consumption as the dirt builds up.
1993 Newell (316) 45' 8V92,towing an Imperial open trailer or RnR custom built enclosed trailer. FMCA#232958 '67 Airstream Overlander 27' '67GTO,'76TransAm,'52Chevy panel, 2000 Corvette "Lingenfelter"modified, '23 Grand Cherokee.