Car questions (mostly about oil and filters)

[bobdole369]

Lousy statistics...

 

[Throckmorton]

I don't want 200 grains of dust in my engine if I can have only 5 grains.

Why would you choose to let in more dust?

 

[exar333]

I don't want 200 grains of dust in my engine if I can have only 5 grains.

Why would you choose to let in more dust?

This.

It only takes a few specs of dust in just the right place to have dramatic consequences. Using K&N filters is foolish.

 

[Meghan54]

Lousy statistics...

Better than the statistics that K&N has showing how well their filters trap air....oh, wait, they don't have one single scientifically done test to prove they flow more air while keeping more dirt out of your engine vs. paper filters, while independent testing shows the opposite....K&N definitely flows more air while allowing more dirt into the engine.

But the latter scenario makes just too much common sense to those who've fallen for K&N's marketing......more air flow through an air filter equals more dirt flowing through the air filter. Cannot have it any other way.

Throckmorton's test link in his sig is a very scientifically done test....done with the SAE testing standards for evaluating air filters for air flow and dirt/crud flow.

But, like a lot of K&N lemmings, the only thing that matters is now trying to justify the $$ paid for the filter. After all, no one wants to admit they spent a wallet full of $$ for something that gives worse results, and possibly damaging results, than a much cheaper and better functioning alternative.

By the way, you are cleaning your MAF sensor wires monthly, right? That coating of oil they have on them will negatively impact your gas mileage, the sensor's longevity, etc. if you aren't........


Just sayin'

 

[the DRIZZLE]

I think he was joking. But actually if you over oil it; the oil can get on the MAF and into the throttlebody.

This is what I meant. If I'm going to get really poor filtering, I'd rather not have my MAF covered in oil as well. I've seen it happen with K&N's that were oiled from the factory so it's not just user error.

 

[bobdole369]

We'll agree to disagree here. I'm not into proving or disproving certain tests, and I'm certainly not going to run my own, but look earlier for my own results. I run the filters, I like them for the convenience. I well understand the "possibility" that its dirtier than a paper filter, but I'm smart enough to look out for that sort of thing, and it certainly hasn't happened, not at all in any amount that detractors seem to espouse. Short answer about the MAF - it isn't getting oily, the datalog from the OBD shows a fairly steady MAF number at idle and at freeway speeds. Interestingly it is going up in volume (but only by about 1% close enough to be an electrical anomaly), which sort of agrees with the position that K&N thinks they increase in airflow as time moves on.

Shrugs - I don't see a problem with these things. You can point to test after test, but I'll put up my own motors on blocks and show you that in a collective 11 years that its not a problem.

 

[JCH13]

We'll agree to disagree here. I'm not into proving or disproving certain tests, and I'm certainly not going to run my own, but look earlier for my own results. I run the filters, I like them for the convenience. I well understand the "possibility" that its dirtier than a paper filter, but I'm smart enough to look out for that sort of thing, and it certainly hasn't happened, not at all in any amount that detractors seem to espouse. Short answer about the MAF - it isn't getting oily, the datalog from the OBD shows a fairly steady MAF number at idle and at freeway speeds. Interestingly it is going up in volume (but only by about 1% close enough to be an electrical anomaly), which sort of agrees with the position that K&N thinks they increase in airflow as time moves on.

Shrugs - I don't see a problem with these things. You can point to test after test, but I'll put up my own motors on blocks and show you that in a collective 11 years that its not a problem.

Just for background, where do you live, what sort of driving do you normally do, and on what types of road conditions?

 

[bobdole369]

South FL - 80% highway and 20% surface streets. The roads here are smooth and perfect.

Now that I think about it, there really isn't much around here to filter, we have ocean and no real industry around us - it rains literally every day, and there isn't much if any smog around. Humph. Never thought about that, but I bet its a different story if I were in say Oklahoma or Iowa where theres actual dust around.

 

[JCH13]

South FL - 80% highway and 20% surface streets. The roads here are smooth and perfect.

Now that I think about it, there really isn't much around here to filter, we have ocean and no real industry around us - it rains literally every day, and there isn't much if any smog around. Humph. Never thought about that, but I bet its a different story if I were in say Oklahoma or Iowa where theres actual dust around.

:sneaky:

:thumbsup: