wardriver

Hey All,
I'm new to the site but I'm on my 5th 4x4 Toyota (3 FJ's, 1 pickup and now a 95 4runner). Anyway I was looking for a filter to let my runner breather better and I came across a really good deal on a Fram AirHog RockAuto.com has them on wholesale clearance for our trucks for $7.49 plus shipping. Then if you check out their deals and rebates, they have a $3 mail in rebate on any Fram filter. I?m in for one at $4.49 + shipping. Beats $30 at Autozone. I just thought I?d share.

-WarDriver-

keithguts

I'm not to fond of fram as they seem to be talked about alot for not being a good filter. I never used them but, What do the rest of you think of this deal?

Red3.slow

I'm not to fond of fram i have a K&N air filter and there are a good number of people here that don't like them. The only thing i like about fram is that non-slip grip stuff on there oil filters.

wardriver

I'm not too fond of their low end filters either. But between springing for a $30 filter for $5 vs the $50 for a K&N I'll go with fram for now until I find someone selling a used K&N...

breknraj

If you are talking about a stock 3.0 V-6, I think I can help you out with that K&N - send me a PM.

wardriver

Oh...
I also found a $20 rebate on this product. So, essentially, I'm getting a $30 product and $13 in cash.

Link[http://ec1.images-amazon.com/images/...6932_.pdf/URL]

wardriver

Ok...so I installed my Fram AirHog. Before I was getting about 16.3mpg on the highway w/ the AC on. After the install I was dialed in at 20.6mpg on the highway with the AC on.

4.3 mpg gain. I'd say that is very significant.

Injohneer

This thing looks pretty much like a K&N; it's the same shape and you oil & clean it like the K&N.

And their website has a hot chick.



I'd like for someone to actually COMPARE the two - instead of just saying they do or don't like some brand. Maybe I'll buy one and give it a whirl. I do usually find a lot of dust when I wheel, so it wouldn't hurt to carry a second filter. It would save having to wash out a filter if I don't have a lot of water or time to spare.

sweetdiesel

Wow, that's a 26% increase in gas mileage. What type of air filter did you have on there before the Airhog?

Greg_Canada

Im calling BS unless your old filter was COMPLETELY clogged before you changed it.

OSU4Runner

FRAM, K&N =

OSU4Runner

Running your A/C isn't going to make a difference in gas mileage anyway, you can factor that out

engineerjoe

?? running AC does use energy from the engine so it will decrease your gas mileage (vs windows closed, no AC)

OSU4Runner

Your A/C compressor is always turning regardless. Its already been proven that it doesn't matter, in fact driving with the windows down, decreases your MPG

Kaleb

Running the A/C will make a difference. It may not be much but it will make a difference. The engine is always turning the compressor pulley, but when you turn the A/C on the compressors clutch engages the pulley, and causes more drag on the engine.

curly_c

go watch mythbusters. they tested with AC vs. Windows down. the truck with the windows down ran way longer than the truck with the AC on. same amount of starting gas in the same make and model or SUV on the same test track.

wardriver

Toyota branded filter...and no it wasn't clogged.



I didn't believe it either....I ran the numbers twice.

wardriver

I've also found a $20 rebate which obviously trumps the $3 rebate.

Link

Also, use coupon code 692405622909 for 5% off.

OSU4Runner

No, I think it was the other way around. The truck with the windows down ran out first. I've been running my A/C for weeks now, everyday and have noticed no difference in gas milage, even on the hottest days

Injohneer

He said it was on both times, so he had no change to "factor out." He simply stated one of the constant factors in his comparison, in case you wanted to know.

Mythbusters, hearsay, folklore... irrelevant.
What is relevant is that a running compressor does consume energy, so there should be a decrease in fuel mileage between windows up, air on vs. windows up, air off. Granted, that will be very small for level highway driving at constant, moderate speeds where the engine can efficiently generate a little more power. When you're doing stop/start driving or goosing it or going too fast (faster = higher drag = more horsepower required just to move), it will not be as efficient to demand that extra 1/3 HP. (I'm guessing 1/3 horse, what size of motor does your average window unit compressor have?)

Mythbusters may have done a good job (they usually do pretty well) for whatever vehicles they tested. But unless they tested a 2nd gen 4runner, their findings are irrelevant to this discussion because the efficiency depends on the coefficient of drag of the vehicle in the windows up vs. windows down configuration. For modern vehicles, the coefficient of drag is usually designed to be lower when the windows are up.

I've started driving to work at 60 mph instead of 65-70, and have observed an increase of about 2.9 mpg: From 220 miles/17 gal tank (12.9 mpg) to about 270 miles/17 gal tank (15.88 mpg).

So if wardriver slowed down (that's common to do subconsciously when you know you're measuring mileage), plus the ~ marginal gain expected with the filter, he could indeed get a 4.3 mpg increase.

Note, he didn't say whether he slowed down or not but I think he would have mentioned that...