Can a fuel filter with close to 60k on it make my motor perform badly?? rough idle, hesitation off the line, etc...

thanks,

Anthony

 

yes.. its kinda like a dirty air filter.. just like clean air and low amounts of air would be getting to the engine.. same thing applies to the fuel filter.. it also lowers gas mileage..

when i changed my FF the car had better gas mileage and pulled harder

 

cahnge your fuel filter every 30 k

 

looks like ill be changing mine next week and cleaning my K&N too.

thanks Sprinty

Ant

 

Fuel Filter

http://vbxmaxima.8m.com/fuelfilter.html

K&N Cleaning

http://64.252.156.63/tails/nissan_ma...n_recharge.htm


just in case someone uses the search feature later and comes across this thread

 

you still haven't changed it??

 

Just a question, doesn't changing your fuel filter give you worse fuel mileage. Since you are installing a new filter that allows gas to flow to the engine more freely then a older more clogged up one.

 

well since you filter was clean to start with... no

 

just because you can get more of something, doesnt mean you'll be using more. once you have a clean filter, it makes it easier to bring fuel in. therefore, a cycle that, with a dirty filter required 2X amount of fuel, with the new filter may only require X amount.

 

Check your throttle body. I bet it is dirty too. When I looked at my wifes Maxima I was disgusted. I cleaned it out with a rag and a toothbrush and the low idle problem went away. It also shifted harder than a motha!

 

what brand is everyone using. i know fram oil filters suck but fram is the only FF i can find for my max in miami

 

nissan brand

 

Im having Nissan put a 300ZX OEM filter in, its bigger than the maximas. I broke 2 spark plugs in the engine, so this is a good time for me to change it while its at the dealer. 77k miles and I think I still have the origional.

 

just changed mine out like 2min ago. The car idles alot smother and accelertaes a lil quicker at WOT.

thanks for the info boys!

Ant

 

told you

 

Be honest now, are you a senior exec at K&N?

They claim the filter works better as it gets dirty. Fantastic, genious marketing! I fell for it and bought the filter and cleaning kit! Wouldn't want to hurt my engine by putting in a clean genuine Nissan filter now, would i?

 

i never doubted you

Ant

 

Are there any advantages to putting the 300ZX filter in? Is there any extra steps I have to do to put one of these in? Is it worth it over the stock one?
Thanks,
-Cyrus

 

last twice as long..

but being that you memorized the 4th Gen FAQ like i did.. you should already know this

nope

Only if you don't want to change the FF as often.. its kinda like copper plugs theory

 

Good stuff... thanks Sprint. I'll go read those FAQs now.
-Cyrus

 

im probably gonna start doin my FF every 15-20k just cause its so easy to change

Ant

 

hmmmm i "searched for a good fuel filter thread" i guess at 25k on my 2k2..its just about time..=)

 

They claims that it filters better, not more. As the dirt accumulates on the filter, it makes the mean pore size drop, so smaller dirt particles are more likely to be stopped by the filter. However, the pressure drop across the filter rises, as the mean free path for air increases because the apparent filter width increases.

In summary: more dirt = better filtering, lowered performance.

 

i guess there isnt a fuel filter onna 2k2..hahaha

 

I assumed he was talking about a K&N air filter, not a fuel filter.

 

Where the reasoning doesn't make sense is more dirt = closer to being clogged, how is it better filtering? A clean element would have to allow dirt to pass through if more dirt is preferable to less. Lowered performance, it's true but why turn to the aftermarket to achieve that? Just hang around your local Nissan garage before their trash gets hauled away and get some dirty air filters.

 

oopz..well this thread was originally for fuel filters..but whatever...i dont have one anyway...nor a K&N