Learned 75% of injector failures come from bad fuel filters

Was reading through some Bosch technical bulletins last night and saw this stat. Never realized how many problems could be avoided just by swapping filters more often. Any of you guys religious about filter changes or do you just run 'em till they clog?

3 comments

3 Comments

emery_black3d ago

lol that stat is wild but honestly I believe it. I had a buddy who never changed his fuel filter on his old Duramax and ended up with two dead injectors. Cost him like 5 grand to fix everything. After that I started swapping mine every other oil change and haven't had a single injector issue since. Such an easy thing to overlook too.

anthony1292d ago

Hear me out @emery_black, I see it a little different. Every other oil change on a Duramax sounds like overkill to me unless you're towing heavy every single day. I've run my LBZ for over 200k miles just swapping the fuel filter once a year and never had a single injector issue. The real killer is water in the fuel from a bad or clogged filter, not just mileage. If you're buying cheap filters from a no-name brand, that's what will get you. OEM or quality aftermarket lasts longer than people give them credit for. So yeah, I think your buddy got unlucky with bad fuel or a factory defect, not from skipping a filter change at 15k miles.

hannah_perry18h ago

I mean I get where you're coming from but I've seen way too many injector failures tied to dirty fuel filters to risk stretching it that far. Once a year might work for some but if you're running a Duramax in cold weather or through a wet season, water buildup is way more likely than people think. Idk, to me it's one of those cheap things that can save you a nightmare down the road, especially compared to the cost of injectors.