If you feel these products helped you, then that"s great, and telling others about your results is ok too.
BUT- Consumer Reports Magazine, a magazine put out by a non-profit group that tests all kinds of products and accepts no advertising money from anyone, has done very scientific tests on virtually all of the gas-saving gizmos out there, including the "Tornado" type air-swirler things and the "magnets on the gas line" deals. Their unbiased findings? None of these things help AT ALL, at least on any modern computer controlled fuel-injected vehicle.
The K&N filters, when clean, DO flow more air than a stock style paper filter. They do this because they don"t filter as good- they don"t trap the smaller particles! That"s probably ok if you only drive on clean paved streets with no dust or dirt.
On our dirt-track stock car engines, we went back to paper filters. After a race with a K&N, you could run your finger around the top of the carb venturies and there"d be a film of fine dust there. The paper filters eliminated this. A major race engine builder says he can immediately tell if a customer has run a K&N type filter when they bring their engines in for rebuilds- there will be MUCH more wear on the cylinder walls due to all the grit that gets by the filter. He strongly advises using only paper filters. However, the biggest reason in his mind is, during a 50 lap race on an average dirt track, the oil on the K&N filter attracts so much extra dirt(bigger particles) that by the end of the race the engine will be down by as much as 50 horsepower(we"re talking about an 800hp engine) compared to a dry paper filter due to the filter being clogged with dirt! He"s verified this on chassis dynos too.
How does this relate to the original topic of gas milage on your street vehicle? Simply that although when clean the K&N might flow more air than paper, it"ll get dirty LOTS faster and kill your mileage unless you stay on top of maintenance and clean that filter often. If ya do that, you"ll get better milage, at least until you cylinder walls and rings get worn enough to where the engine just can"t run as good. The best thing K&N has going for it is a super marketing program!
We sell tractor parts! We have the parts you need to repair your tractor - the right parts. Our low prices and years of research make us your best choice when you need parts. Shop Online Today. [ About Us ]
Today's Featured Article - Restoration Story: Fordson Major - by Anthony West. George bought his Fordson Major from a an implement sale about 18 years ago for £200.00 (UK). There is no known history regarding its origins or what service it had done, but the following work was undertaken alone to bring it up to show standard. From the engine number, it was found that this Major was produced late 1946. It was almost complete but had various parts that would definitely need replacing.
... [Read Article]
Latest Ad:
1964 I-H 140 tractor with cultivators and sidedresser. Starts and runs good. Asking 2650. CALL RON AT 502-319-1952
[More Ads]
All Rights Reserved. Reproduction of any part of this website, including design and content, without written permission is strictly prohibited. Trade Marks and Trade Names contained and used in this Website are those of others, and are used in this Website in a descriptive sense to refer to the products of others. Use of this Web site constitutes acceptance of our User Agreement and Privacy Policy
TRADEMARK DISCLAIMER: Tradenames and Trademarks referred to within Yesterday's Tractor Co. products and within the Yesterday's Tractor Co. websites are the property of their respective trademark holders. None of these trademark holders are affiliated with Yesterday's Tractor Co., our products, or our website nor are we sponsored by them. John Deere and its logos are the registered trademarks of the John Deere Corporation. Agco, Agco Allis, White, Massey Ferguson and their logos are the registered trademarks of AGCO Corporation. Case, Case-IH, Farmall, International Harvester, New Holland and their logos are registered trademarks of CNH Global N.V.
