I have a John Deere F935 mower with a Yanmar 3TNA diesel. I got fuel at one station regular until one day, their diesel pump was down so I bought at the Co-Op convenience store. It was a few cents higher. I ran about 15 minutes and plugged the fuel filters. Biodiesel they said. I switched back to where I always fill my truck and never another problem. My mower is a 90 something model and still running fine on the Ultra Stuff. I have even ran a 1466 and 1650 Oliver on the service station brand and never a problem.
Where ever I fill up, truck, mower, car, anything, I try to find stations that have a lot of traffic. Fuel might be fresher there.
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Today's Featured Article - Tractor Hydraulics - The Basics - by Curtis Von Fange. Hydraulics was one of the greatest inventions for helping man compound the work he can do. It’s amazing how a little floor jack can lift tons and tons of weight with just the flick of a handle. What’s even more amazing is that all the principals of hydraulic theory can be wrapped up in such a small package. This same package applies to any hydraulic system from the largest bulldozer to the oldest and smallest tractor. This short series will take a look at the basic layout of a simple hydraul
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