Fuel Filter Change Interval
What is the recommended change interval for the fuel filters on a Cat?
Forum Discussion
A fuel filter will clog in proportion to how many miles it's been used (ie, number of gallons which have flowed through it) and the quality of fuel.
I have a fuel restriction (vacuum-reading) gauge which shows me when the primary fuel filter / water separator needs changing. In my case, it's about at six inches of mercury. Most of the time, I get tired of waiting for it to reach that limit, so change it every two or three years, which is maybe at 15000 miles or so. When I change the primary, I also change the secondary filter.
If I were to get a bad load of fuel (haven't yet), my fuel restriction gauge might reach its limit in 100 miles. I would change it then.
So, like some underwear, Depends.
I have a fuel restriction (vacuum-reading) gauge which shows me when the primary fuel filter / water separator needs changing. In my case, it's about at six inches of mercury. Most of the time, I get tired of waiting for it to reach that limit, so change it every two or three years, which is maybe at 15000 miles or so. When I change the primary, I also change the secondary filter.
If I were to get a bad load of fuel (haven't yet), my fuel restriction gauge might reach its limit in 100 miles. I would change it then.
So, like some underwear, Depends.
