Daddy-O

K&N Mileage Report #3

Took a road trip vacation...Seeing as how I have the coolest ride on the planet...Why not?

Tank #1: Well, I did it...25.2MPG from Raleigh NC to Easton MD via the Chesapeake Bay Bridge Tunnel. Not a whole lot of 65mph speed limit, so I had to keep it below 70 MPH (generally under 65MPH). Wow!
Was averaging 23.5 mpg in these conditions
This tank avg: 25.2mpg
- A 7.2% increase

I Went 399 miles before the gas light came on. I was tempted to try to go 500 miles on the tank, but was not confident there were enough gas stations where I was going, so filled up at 450 miles. I believe I could have made it!

Tank #2: Mixed city/highway, all-purpose driving around MD/DE yielded 22.9MPG. Lots of small towns @30-35MPH.

Tank #3: I decided to step on it a little. A lot more agressive on the gas pedal. Speed limits - NC 70mph, VA 60-65mph, MD 60mph. Traffic was moving well, so I fell in line and really wound it up a few times on the Interstate (85-90MPH). It was sunny and 99°F, so I had the AC blasting in my Black Onyx convection oven...Still made 22.4MPG.

So, as I wrote in an earlier post, I am confident that I can average 25mpg, if I can keep it under 70mph, but, hey, I've done it and I would rather enjoy the ride than worry about the reconciliation at the gas pump.

So, to conclude, I highly recommend the K&N FilterCharger. It's $50, but that's a bargain as I am saving 1.5-2 gallons of gas per tank/week. That's $2-$2.50 per tank/week, so in 6 months I'll have recovered my investment and never again have to buy another air filter for my ride.

LexRX

Thanks for the report Paddy Wagon. I've been meaning to buy a K&N...need to...eventually will. I think I'll wait until either my current one needs replacing or I buy an RMM exhaust (whichever happens first)

BTW those are some great mileage figures.

Daddy-O

Now the question is, do I re-install my OEM filter for my 5K service?
I really have no desire to hear any crap from Lexus for using the K&N.

ObiDon

I went in for my 15k with the "do not throw away" sticker and the K&N sticker on the filter cover an told them what I had. No problem, but I did check later to make sure they did not replace it.

Daddy-O

Yeah, I'll try it ObiDon...Sounds good...
But, I still really have no desire to hear any crap from Lexus.

I sure do dig this K&N, though.
Better mileage/response.
Oil still is honey golden after 4,200mi.

LexRX

Hey Paddy Wagon, where did you get your KN from? I'm going to replace my air filten with one when it needs it.

Daddy-O

Advance Auto Parts...$51.99, but there was a coupon in the local
paper for 10% regular priced Items, so it was 46.79 , plus tax.

I recently picked up the cleaner/recharger kit
from Manny, Mo and Jack for $9.99.

So...$58, plus tax for the whole enchilada. Still a good deal.

Daddy-O

Last 3 tanks of 87 octane gasoline produced the following:

22.6 MPG Mixed driving City/Highway
20.9 MPG City driving
22.4 MPG Mixed driving City/Highway

All with AC blasting.

Thanks K&N!

Daddy-O

While getting my RX serviced, yesterday I told my Service Consultant that I missed my RX (with the K&N) because the loaner RX was so sluggish.

He had not really heard about the K&N, so I enlightened him and also told him about the TRD High-flow filter (made by K&N?) that the dealership sold.

He bought a TRD filter that evening and installed it in his new RX 300. He was raving about it this afternoon.

It's all good.

spinteews

hahah Paddy, i think you shoudl work at Lexus instead of him

Hey, i have the weapon R intake, should i change the filter with an K&N Cone?

Daddy-O

Dunno, spin...Can you get one that fits?
That's a $50 experiment. I wish K&N made
their Fuel Injection Performance Kit for the RX.

They have kits for the 4Runner, Tacoma,
Tundra and Sequoia...Even the Corolla

So the question is...Got $50 laying around?

Daddy-O

Unbelievable!

26.9 MPG! All highway driving. No A/C. No interstates.
Running @64MPH and lower. Just 4 lane highways
with cruise control. Regular gas. Wow.

24.4 MPG on the way back. Had to run the A/C.

Again, thanks K&N.

CammOLiPZ

Just ordered an air and gas filter at the lowest price on the web!

tri lexus

first and foremost, thanks to everyone for all the helpful info. i just took delivery on a 02 vapor blue rx300 (the third lexus in my car stable) and immediately ordered the 2052. problem is, it seems an inch or so too small. k&n suggests the 2145-1. is this a better fit?

Daddy-O

If it's too small, that's obviously not good. To check that out, just hold your K&N up back-to-back with the OEM filter you take out. I was concerned about it's dimensions, so I bought mine from a local Auto store so I could match it with the OEM.

Make sure you save your OEM filter in the K&N box.

I have an 02 Black Onyx. 33-2052 is a perfect fit. It's the filter recommended for "99 and up" on most web sites.
Dimensions for 33-2052 Air Filter; Panel; H 1"; ID 7.5"; OD 12.375" -

I have no experience with with 33-2145. Apparently there were some issues....Some people said it was too small.

33-2145-1 was released Mid-March, 2002.
That's what K&N matches up for the RX 300 on knfilters.com, now.
3 months ago 33-2052 was the part # for "99 and up".

Here's what I did to double check.
Surfed to www.fram.com, entered my vehicle, came away with part # CA7351.
Went back to knfilters.com and plugged in this cross-reference number.
Here's what I got
Fram CA7351= KN-33-2052
Fram CA7351= KN-33-2145

Good luck.