harveyf

If you can't remember the last time you replaced your fuel filter, it might be a good idea to do so. Here is what mine looked like after I cut it open. Yuck!

I actually had a hard time finding it. It's under a sheet metal cover at the rear of the car, snuggled up against the fuel tank. If you have the correct size wrenches, it's about a 10 minute job. BTW The blue item is the fuel pump.

AirtekHVAC

Nice. Yea, it's important.

SMTCapeCod

On new to me 928s I do three of four changes at 800-1600 mile intervals, then go to 10K once I get two that seem clear/free of particles in the spilled fluids.

ltoolio

Why do you see such contamination of those first 3-4 changes? Build up sediment/gook that has settled in the tank over time?

Hilton

Damn.. I wish I'd thought to cut open the filters I"ve removed from my 928's when I got them. Its part of my standard "replace all the fluids/filters" routine.

bureau13

I've...umm...never replaced mine. I don't know that the PO didn't recently do it, but it seems like something I should have done, no? I think I'll go ahead and order one...

James Bailey

Just be very careful with the metal fuel line to the pump ..... they easily get buggered up !! Sold lots of replacements over the years
Note there is no recommended service interval for the fuel filter.....

bureau13

Really...surprised at that lack of recommended change interval. Are you recommending leaving it alone until there are symptoms which warrant a change? I'm not aware that I have any, to be honest.

James Bailey

No auto maker designs a car to last forever at best the "life" of the car....whatever that means A new filter every 10-15 years is probably more than adequate unless you suspect unusual contamination..... Many new cars have lifetime fuel filters

bureau13

For all I know, mine could have been replaced a year ago, or never. Seems like as long as I'm careful, replacing it would be a good idea, so as to have a known baseline. I know the car did sit for a while before the PO got it running.

Any tricks to getting the filter off, beyond using the properly sized wrenches and being careful?

James Bailey

Some find it easier to remove the pump and filter assembly and work on the pipe on the workbench..... just be sure to have new sealing crush washers for the banjo bolt..

bureau13

Ahh, good point about the crush washers...

kmascotto

Good rule is to write the date installed and mileage of car on the filter with a marker...for future reference.

harveyf

I always get a little worried when aluminum threads are involved. I hit the threads with Kroil penetrant first and used my calibrated right arm to feel my way towards the nuts breaking loose. Fortunately it is pretty hard to damage (round off) such large nuts.

The fuel filter I got from Roger Tyson had the sealing washers included. I believe he mentioned that he did that as a special service.

Andre The Giant

I guess I will check my service records for the fuel filter, if no mention, I will do next year. I will have to find the post which shows how to change that filter and print it so that I can have all the documentation ready prior to doing the work. nothing like being prepared ! lol