More precisely, what's the oldest filter you've ever changed out and knew for sure how old it was? I've seen a few old ones over the years, but I hit my all time oldest tonight. I was servicing an '89 Ford L8000 dump truck for a customer who had just purchased it from the original owner. Filter aside, it's a really nice truck, runs good, good inside the cab, good tires and brakes, etc, etc. Basically, just a nice old truck.
So, I got the oil and fuel filters changed out and then moved on to the air filter. When I pulled the cover the date written on the end hit me right off. The filter was hand dated, in magic marker, with a date of January 14, 2004. That makes that filter just over 10 years old.
I don't know how many miles were driven in those 10 years, or how many hours on that engine, but the filter was dirty.....but not just plain NASTY like you'd figure it would be. Of course I didn't try to blow it out or anything, so it may well be worse off than it appears. Either way, a filter being in use for 10 years, in a truck that a man used to make a living, simply doesn't compute when it comes to any kind of service interval I have ever seen....
Some years back Dad and I were working on an old F/A tracked loader for a customer.He said Dad had worked on it years before when he was at the dealership. When Dad pulled the air filter on it, there was a date from nearly 12 years before, and he said the writing looked just like his.
So, what's the oldest filter, on a machine, that ya'll have ever seen or changed? The replies ought to be pretty interesting.
So, I got the oil and fuel filters changed out and then moved on to the air filter. When I pulled the cover the date written on the end hit me right off. The filter was hand dated, in magic marker, with a date of January 14, 2004. That makes that filter just over 10 years old.
I don't know how many miles were driven in those 10 years, or how many hours on that engine, but the filter was dirty.....but not just plain NASTY like you'd figure it would be. Of course I didn't try to blow it out or anything, so it may well be worse off than it appears. Either way, a filter being in use for 10 years, in a truck that a man used to make a living, simply doesn't compute when it comes to any kind of service interval I have ever seen....
Some years back Dad and I were working on an old F/A tracked loader for a customer.He said Dad had worked on it years before when he was at the dealership. When Dad pulled the air filter on it, there was a date from nearly 12 years before, and he said the writing looked just like his.
So, what's the oldest filter, on a machine, that ya'll have ever seen or changed? The replies ought to be pretty interesting.