great white
Well-Known Member
Time for the old paper filter to get the "heave ho".
Mileage and dirt accumulation has done 'er in.
So, I thought I'd give a K&N a try.
Now before we start, I've read the negative stuff about K&N's. I'm familiar with it and would prefer this thread not turn into a "P-ing" match about who's right or wrong, which flows more, which filters better, etc. That info is out on the web, you're more than welcome to go find it and make your own decisions. This thread is just for my personal experiences and how it will go with my truck's "real world" environment. You results will probably differ.
For the record, I have K&N's in my 300M, my interceptor and my CB650. I like 'em, except for the price.
Here's a pictorial of the differences between my old Purolator filter and the new K&N:
Initial impressions?
Well, it's smaller than the Purolator, diameter being the important difference. It also has far fewer pleats, which should mean less surface area.
On the other hand, the Purolator filled the K47 box to the point where it was up against the plastic in a couple areas, it pretty much looked too big for the box.
I do like the flange on the filter that allows a clamp to assist in sealing up the intake tube. The Purolator relied on a friction fit and a few "ribs" to make what amounts to a labyrinth seal.
I'll have to run a few tanks through the truck to see if there's any gain in MPG. This tank is a wash as I'll be hauling the 35 footer for the better part of it.
The filter cost 80 bucks after taxes.
I don't do oil analysis, no need for it on a 300,000+ kms rotating assembly. When the LB7 or P400 goes in it'll be a different story.
I may give a "butt dyno" impression, but that's a pretty subjective thing so don't put any weight on it if I do.
We'll see how the fuel log goes.....good or bad, I'll post 'er up!
Mileage and dirt accumulation has done 'er in.
So, I thought I'd give a K&N a try.
Now before we start, I've read the negative stuff about K&N's. I'm familiar with it and would prefer this thread not turn into a "P-ing" match about who's right or wrong, which flows more, which filters better, etc. That info is out on the web, you're more than welcome to go find it and make your own decisions. This thread is just for my personal experiences and how it will go with my truck's "real world" environment. You results will probably differ.
For the record, I have K&N's in my 300M, my interceptor and my CB650. I like 'em, except for the price.
Here's a pictorial of the differences between my old Purolator filter and the new K&N:
Initial impressions?
Well, it's smaller than the Purolator, diameter being the important difference. It also has far fewer pleats, which should mean less surface area.
On the other hand, the Purolator filled the K47 box to the point where it was up against the plastic in a couple areas, it pretty much looked too big for the box.
I do like the flange on the filter that allows a clamp to assist in sealing up the intake tube. The Purolator relied on a friction fit and a few "ribs" to make what amounts to a labyrinth seal.
I'll have to run a few tanks through the truck to see if there's any gain in MPG. This tank is a wash as I'll be hauling the 35 footer for the better part of it.
The filter cost 80 bucks after taxes.
I don't do oil analysis, no need for it on a 300,000+ kms rotating assembly. When the LB7 or P400 goes in it'll be a different story.
I may give a "butt dyno" impression, but that's a pretty subjective thing so don't put any weight on it if I do.
We'll see how the fuel log goes.....good or bad, I'll post 'er up!