Dirty diesel fuel can be a problem for any diesel engine. When I bought my 758 I had an advantage because I had been around this little engine for years at work and knew of its little problems. Also learned a few tricks to prevent problems. We have used these glass filters for a long time to save lift pumps from failure due to dirty fuel. I installed one shortly after buying the tractor. I have always been picky about my fuel and use a clear race gas jug to get and store my fuel. If there is any crud in it I can see it. I was pretty surprised this evening when my tractor started to die like it was running out of fuel. I checked my glass fuel filter and this is what I saw. I cleaned it and will run it for a while again and check. If it fills with crud again I guess I get to see how much fun it is to remove the tank and clean it. Just thought I would share.