We have over 1,000 hrs some go as high as 1500 hrs on oil changes. We test oil every 200-300 hrs, and change when oil test start to show either a breakdown in oil or a contamination beginning. 4 of the 5 tractors below have by pass filters on them. We put shut off valves on so that if the hose gets a leak or some other problem accures.
Edited by Hop-a-long 3/29/2009 19:28
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Luberfiner's, couple questions..........
