Waiting till fuel filters do not pass fuel any longer put's strain on the fuel pump, can harm injectors, and reduces fuel economy. Fuel filters are a tuneup issue, they should be replaced long before they are clogged. Diesel engines need tuneups also, just as the fuel filters should be replaced, so should the valves be checked, and the fuel timing checked. Who wants to be changing fuel filters on the side of the road while thier date sits in the car getting upset because now you're late for dinner reservations. I always laugh when I hear "if it aint broke, don't fix it" because it reminds me of cletus talking about his delapitated truck smoking and backfiring. If you take care of your vehicle and do the suggested preventitive maintainance it will last longer, run better, and rarely break down.84300DTurbo - 3/10/2005 6:19 PM
the fuel filters are good until they won't pass any fuel anymore then it is time to replace them. keep a couple of spares in the car for that purpose. they are so easy to change you can do it anywhere with minimal tools.
Waiting till fuel filters do not pass fuel any longer put's strain on the fuel pump, can harm injectors, and reduces fuel economy. Fuel filters are a tuneup issue, they should be replaced long before they are clogged. Diesel engines need tuneups also, just as the fuel filters should be replaced, so should the valves be checked, and the fuel timing checked. Who wants to be changing fuel filters on the side of the road while thier date sits in the car getting upset because now you're late for dinner reservations. I always laugh when I hear "if it aint broke, don't fix it" because it reminds me of cletus talking about his delapitated truck smoking and backfiring. If you take care of your vehicle and do the suggested preventitive maintainance it will last longer, run better, and rarely break down.[/QUOTE]Stevenpfaff - 3/10/2005 7:51 PM
The prefilter should be changed when it is black/clogged, thats why its see-thru. 30k is for secondary filter interval.Stevenpfaff - 3/10/2005 3:04 PM
The prefilter and main filter should be changed every 30,000 miles. The little filter is the prefilter and the large one is the main filter.
why ATF? does it help the injectors?84300DTurbo - 3/11/2005 7:13 AM
you can also fill up the new secondary filter with fresh diesel or ATF before installation which cuts down on the priming time.
ATF burns easily in a diesel engine, it has cleaning properties and is a great lubricant for the injector pump. Some diesel mechanics recommend a quart every 4th tank full added to the fuel tank. As for When to change the filters...it is recommended to run diesel purge every 6 months to keep injectors clean...so...GaryL - 3/11/2005 12:01 PM
why ATF? does it help the injectors?84300DTurbo - 3/11/2005 7:13 AM
you can also fill up the new secondary filter with fresh diesel or ATF before installation which cuts down on the priming time.
gary
yeah supposed to clean 'em out a bit. maybe old wives tale but anyhow it doesn't matter you can just as well fill the filter with fresh diesel.just plug the center hole with your thumb and pour the fuel into the small holes around the edges. these engines will burn just about anything it seems..GaryL - 3/11/2005 3:01 PM
why ATF? does it help the injectors?84300DTurbo - 3/11/2005 7:13 AM
you can also fill up the new secondary filter with fresh diesel or ATF before installation which cuts down on the priming time.
gary
Why in the heck would you wait to change a filter till it's clogged!?! Is that what you do with your air filter? That's just assinine. Fuel filters are not made see through so that you can tell it's clogged, they are made see through so that you can see if you have major debris flowing into your filter so you know if you need to flush your fuel tank. Things like this are the reason cars turn to crap, people who don't know much about them but think they do, do things like wait until it falls apart before doing any kind of maintainance or repair.Mr. Byrnzoyl - 3/11/2005 8:00 AM
The prefilter should be changed when it is black/clogged, thats why its see-thru. 30k is for secondary filter interval.
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cheers,
RObert