how does the lifetime air filter work?
2 Answers
Auto_Centric answered about a year ago
The negative side to a "lifetime" filter is the element is OIL coated, there cleaned with spray or simply re-oiled BUT, on modern vehicles which use a MAF sensor that meters grams of air into the engine, OIL isn't a good thing and it's only a matter of time until oil makes it to the MAF. IF you clean the MAF frequently fine...use an oiled filter otherwise filters are inexpensive and easy to change. THIS pertains more to performance or people seeking high fuel economy, than low or no maintenance filters.
Your Answer
Related Questions
-
how does the lifetime air filter work? 2 answers
2007 Ford Focus ZX3 SE
-
Maintenance & Repair
-
My ZTW has a Lifetime Air Filter. How does it keep from CLOGGING? 4 answers
I'm curious about how an air filter can last the life of a car without maintenance.
2004 Ford Focus ZTW Wagon
-
Maintenance & Repair
-
should the air filter box (lifetime) have water in it? 2 answers
Removed air filter box and saw water in the indicator mounted on the side and dumped water out of box. Is this normal? Should the filter be replaced? Have had problems with acceleration and hesitat...
2009 Ford Focus
-
Maintenance & Repair
-
how to change the fuel filter 1 answer
how to replace the fuel filter and what could be wrong if it doesnt start afterwards
2003 Ford Focus
-
Maintenance & Repair
-
the air filter was changed out and was not installed properly 1 answer
all filter was changed out, but the new filter was not installed correctly because it was missing the rubber ring which connected to the maf sensor. my question is if the filter was not installed co...
2014 Ford Focus SE
-
Maintenance & Repair

Looking for a Used Focus in your area?
CarGurus has 76,949 nationwide Focus listings starting at $1,195.
Shortcuts
- Ford Focus Questions
- All Questions
- Ask a Question
- Ford Focus Reviews
- Ford Focus For Sale
Search Ford Focus Questions
Ford Focus Experts
-
#1Tom DemyanReputation1,600
-
#2dandyounReputation1,370
-
#3Su'ad BarakatReputation1,050
Related Models For Sale
Used Cars For Sale
Content submitted by Users is not endorsed by CarGurus, does not express the opinions of CarGurus, and should not be considered reviewed, screened, or approved by CarGurus. Please refer to CarGurus Terms of Use.