Air filter indicator

[jhm]

I tend to go by mileage for the air filter because it is fairly inexpensive. Does anyone wait for the indicator to go red?

[pwall]

No not really...but then again, I removed the factory air intake and replaced it with a CAI.

But while my truck still had the factory intake, I replaced the filter on a regular basis and didn't pay much attention to the indicator.

[Koinz]

Seeing as I recently purchased my new used truck, I had never seen one of these air filter indicators before.

 

My 02 Safari doesn't have one and my Nissan Maxima didn't either. Probably better to x' this and put a drain plug on the rear diffs. It's a little more useful.

[asilverblazer]

I think the question should be whose works, then who uses it.

[rmreid]

 

I think the question should be whose works, then who uses it.

 

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[svensk]

 

I think the question should be whose works, then who uses it.

 

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No kidding

Mine has been showing the same thing for 2 years now. I don't even reset it if I recharge the K&N.

[Wingnut]

You can reset them?

 

 

Honestly, I've never looked at it very closely in any truck that's had it.

[jhm]

I took the indicator off one time to see how much air pressure would be required to pull it into the red zone. That is when I decided not to rely on it. I guess this innovation goes into the dud drawer.

[hoorders]

I took the indicator off one time to see how much air pressure would be required to pull it into the red zone. That is when I decided not to rely on it. I guess this innovation goes into the dud drawer.

 

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I would have to agree................I think the filter would just about have to be clogged solid for that indicator to actually move............and by then you would notice your truck running like crap anyways............

[C & A s Dad]

These indicators have been around for years and were developed for the Heavy Duty and Off Road Industry. We sell the exact same piece that comes on our trucks and they are supplied to us by CARQUEST Filters (Wix).

 

They certainly have a use for heavy equip being used under severe conditions and can save an engine. Also, much of this equip requires a good deal of labor to get to the airfilter to inspect it. For this reason they rely on the indicator.

 

I can also tell you that even on Light Duty trucks like ours that are used on farms, mines, or are in other severe duty situations, the indicator is used because these filters can become completely clogged as someone had mentioned earlier. I have seen them pulled out of some farm trucks and they would be so stopped up that it is unbelievable the truck would even run.

 

I guess we (most of us) have to realize and admit that our trucks are treated like babies compared to what some trucks go through.

[gave20]

I use mine. the indicators says 50% but when I pulled the filter I'd say it was only 30% clogged.

[jhm]

What other maker puts these on the air box? I doubt their reliability. Does anyone know if the '07 has it?

[Mr. Smith]

I took the indicator off one time to see how much air pressure would be required to pull it into the red zone. That is when I decided not to rely on it. I guess this innovation goes into the dud drawer.

 

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It doesn't use pressure...It uses vacumn/suction to pull it in the red.

 

Dud?? d**n I guess all the heavy machinery that use Donaldson equipment are duds too...

 

If the filter were to be operated in a very dusty/dirty environment it probably would work as intended. But since most aren't it will probably never set.

[Buggle_96]

If the filter were to be operated in a very dusty/dirty environment it probably would work as intended. But since most aren't it will probably never set.

 

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So are you saying it doesnt work?

[C & A s Dad]

If you subject your truck to some very dusty and dirty conditions such as farm use or put it in a mine running 24 hours a day, the indicator would certainly move and indicate the filter is not flowing well. However, driving on paved roads every day I would imagine you could put 75,000 to 100,000 miles on an air filter and never see it move far enough to indcate the filter needs replacing.

 

Please do not misunderstand what I am saying. I believe the filter needs changing far before 75,000 miles even though the indicator may not have moved this far. Someone said in earlier in the post that air filters are not that expensive and it only makes sense to change them every 25K to 30K under normal conditions. I would have to agree with this.