Astrak Posted October 9, 2006 Report Share Posted October 9, 2006 I purchased a K&N air filter for my Caddy 4.9 and it doesn't fit the air box it is only off by a few Millimeters so I was wondering is it ok to cut the rubber that overhangs off? If I cut too much off will this cause a leak, that is really my only concern otherwise I would have cut the darn thing already. Link to comment Share on other sites More sharing options...
Dan Posted October 9, 2006 Report Share Posted October 9, 2006 I have one for my caddy. It should fit, it's just really tight. Don't install the weather stripping that came with the filter. Link to comment Share on other sites More sharing options...
BodybyFisher Posted October 9, 2006 Report Share Posted October 9, 2006 Before you use that K&N filter read this thread, there is NO benefit to it, and it might actually be a negative, Mike (Scotty/BodybyFisher) http://caddyinfo.ipbhost.com/index.php?sho...;hl=K&N The LEAK that you are going to have is not its FIT, but the DIRT that goes right through it..... Pre-1995 - DTC codes OBD1 >> 1996 and newer - DTC codes OBD2 >> https://www.obd-codes.com/trouble_codes/gm/obd_codes.htm How to check for codes Caddyinfo How To Technical Archive >> http://www.caddyinfo.com/wordpress/cadillac-how-to-faq/ Cadillac History & Specifications Year by Year http://www.motorera.com/cadillac/index.htm Link to comment Share on other sites More sharing options...
Ranger Posted October 9, 2006 Report Share Posted October 9, 2006 You'd be far better off returning it and putting the money toward something usefull. Link to comment Share on other sites More sharing options...
Astrak Posted October 10, 2006 Author Report Share Posted October 10, 2006 You're all a little too paranoid, like with seafoam it does not destroy a transmission I put it in at the last time I changed my transmission fluid(another thing people often say destroys transmissions) now my transmission shifts better. I have had K&N filters in all the cars I own now there was no noticeable performance increase in any of them but I like only having to clean the filter every 50,000 miles or so instead of paying $15.00 every 12,000 miles or so I think it also makes the engine sound better. I have always used additives like Lucas oil stabilizer, Seafoam or higher quality things like K&N filters and always have had a better performing car. Now I don't think things like the fuel injector treatments or that crap you can buy at gas stations really helps. I have one for my caddy. It should fit, it's just really tight. Don't install the weather stripping that came with the filter. What weather stripping? Link to comment Share on other sites More sharing options...
JohnnyG Posted October 10, 2006 Report Share Posted October 10, 2006 Does it mean your paranoid if they're REALLY after your money? Never underestimate the amount of a persons greed. Link to comment Share on other sites More sharing options...
Regis Posted October 10, 2006 Report Share Posted October 10, 2006 How often do you change your oil Astrak? "Burns" rubber " I've never considered myself to be all that conservative, but it seems the more liberal some people get the more conservative I become. " Link to comment Share on other sites More sharing options...
BodybyFisher Posted October 10, 2006 Report Share Posted October 10, 2006 Paranoid what a laugh Here is the summary of testing on the wonderful K&N. You are FREE to run without an air filter if you like. When you look at the testing results, the K&N does not outperform the OEM paper filter. Exerpts from the above mentioned link at bobistheoilguy: "For the record, the K&N was the best flowing filter. Of the 3 types of media tested, the cotton gauze type filters flow best. There are other brands besides K&N for sale, of which most are probably made by K&N for resellers. Foam air filters flowed marginally better than paper". "That said, both the cotton gauze type (K&N) and foam filters (Amsoil & Jackson Racing) showed the same levels of filtration. Both performed poorly compared to the fiberous or paper filters (Napa, Baldwin, and Mazda)". Pre-1995 - DTC codes OBD1 >> 1996 and newer - DTC codes OBD2 >> https://www.obd-codes.com/trouble_codes/gm/obd_codes.htm How to check for codes Caddyinfo How To Technical Archive >> http://www.caddyinfo.com/wordpress/cadillac-how-to-faq/ Cadillac History & Specifications Year by Year http://www.motorera.com/cadillac/index.htm Link to comment Share on other sites More sharing options...
GreenMachine Posted October 10, 2006 Report Share Posted October 10, 2006 Maybeing changine the fluid was the reason your tranny shifted better? That is something we do recommend doing on this site, we DO NOT recommend flushing. The air cleaner was changed the day this car was bought used @ 59,000 miles. I've cleaned the tubing and housing in that time period but the air cleaner is still clean, I don't drive in the worst conditions, since its rather humid here at times there isn't much dust, but I find you don't have to change the air filter to just change it at the intervals, just have a look at it and see what it looks like. If I remember most of this forums testing has been with the northstar, not the 4.9, but the K&N is "ok" for a quick track runs, but for everyday use it doesn't do a good job of getting cold air to the engine or avioding moisture (something the behind the headlight intake does is keep it dry and suck in air thats around the hot engine). Does the 4.9 have a sensor built onto the airbox like the Northstar does? The Green's Machines 1998 Deville - high mileage, keeps on going, custom cat-back exhaust 2003 Seville - stock low mileage goodness! 2004 Grand Prix GTP CompG - Smaller supercharger pulley, Ported Exhaust Manifolds, Dyno tune, etc 1998 Firebird Formula - 408 LQ9 Stroker motor swap and all sorts of go fast stuff Link to comment Share on other sites More sharing options...
Bruce Nunnally Posted October 10, 2006 Report Share Posted October 10, 2006 On my CTS I use a volante performance intake. On my tests for the northstar, a performance filter or cone filter did not help in measured 0-60mph tests. For the 4.9L I used a drop-in K&N filter with what I thought was good result, but I did not do before/after tests of that specific item. Bruce 2023 Cadillac CT4-V Blackwing Follow me on: Twitter Instagram Youtube Link to comment Share on other sites More sharing options...
Astrak Posted October 10, 2006 Author Report Share Posted October 10, 2006 I'm not saying that the K&N filter improves performance at all but I do believe that it does keep more dust out of the engine, I don't care what the tests say I have seen in all three vehicles I own the before and after. In the 2000 Dodge intrepid ES 3.2, the 1999 Jeep GC limited 4.7 and the 1993 Mercury Capri 1.8 intake and TB have been cleaner than without the K&N I checked because I was skeptical at first also. Living in Arizona I think it is very important to have a good air filter. I also check my oil when I fill up for gas, when the oil is getting dark it is time for a change. I do agree that changing the transmission fluid was a reason that the transmission shifted smoother, it might not have been the seafoam I have mostly seen it work miracles on older cars with transmissions on the fritz. Link to comment Share on other sites More sharing options...
Ranger Posted October 10, 2006 Report Share Posted October 10, 2006 I like only having to clean the filter every 50,000 miles or so instead of paying $15.00 every 12,000 miles Not sure where you are getting your information or filters, but last one I bought was about $7. Check your owners manual on the recommended change interval. At $7 every 30K (recommended), it would take you 214,000 miles to break even assuming a $50 price of a K & N. If you like the sound, that is one thing, but your economics makes no sense. OMG You live in Arizona and believe it is important to have a good air filter and yet you use a K & N. As our old GURU once said, "you don't know, what you don't know". I am at a loss for words. It's your car and I can see that you are doing what you think is best, but you really should do some research other than the K & N site. Best of luck to you. Link to comment Share on other sites More sharing options...
BodybyFisher Posted October 10, 2006 Report Share Posted October 10, 2006 Listen, marketing is a strong inducement. Testing is the answer to the marketing hype. If you want to use a filter that has proven to filter less than an OEM paper filter, that is your choice. We are here to caution you to issues, if you want to go against that, that is your choice. No problem. The color of the oil means nothing in terms of when to change it. The Oil Life Monitor has been designed to consider many variables and if you are not using it you should. If you are interested in information as to how it works, I will post it. Pre-1995 - DTC codes OBD1 >> 1996 and newer - DTC codes OBD2 >> https://www.obd-codes.com/trouble_codes/gm/obd_codes.htm How to check for codes Caddyinfo How To Technical Archive >> http://www.caddyinfo.com/wordpress/cadillac-how-to-faq/ Cadillac History & Specifications Year by Year http://www.motorera.com/cadillac/index.htm Link to comment Share on other sites More sharing options...
Astrak Posted October 10, 2006 Author Report Share Posted October 10, 2006 These are my personal findings from what I have experienced and K&N filters do seem to filter better. The $15.00 is at Arizona auto parts every 12,000 because that is when it gets dirty. I have always been told that dirty oil is a good sign that it is time to change it anyways the oil life indicator is usually saying change engine oil soon in the Caddy. Link to comment Share on other sites More sharing options...
BodybyFisher Posted October 10, 2006 Report Share Posted October 10, 2006 Well lets give you some information to consider then, read this and see the link: Oil Color, Lubrication Ability and Contamination Level AMSOIL Synthetic Lubricants are designed and engineered for extended drain interval service. The color the AMSOIL on your dipstick (or ANY oil for that matter) has absolutely no bearing on whether or not the oil is suitable for continued use or if it should be drained and replaced. Use the recommended change intervals for both the oil and engine oil filters as specified by AMSOIL. It is a common misconception that an oil's color is an indication of how dirty it is. This is absolutely NOT TRUE. The color of an oil does not have any bearing on its lubrication ability. Most oil and especially diesel engine oil will turn black in the first few hours of operation due to contaminates generated by the combustion process and soot particles. The ONLY way to accurately determine an oil's lubricating value or contamination level is through (spectrographic) oil analysis. Oil analysis is common practice used regularly in commercial, industrial and fleet operations and can also be used for passenger cars, light trucks or any other application. In addition oil analysis will also determine the exact pars per million (ppm) of wear metals in your oil which provides an indication of any abnormal wear or specific components that need mechanical inspection in addition to checking for any fuel, water or glycol contamination. *At the end of this section you will find a listing of what oil analysis testing checks for. Its important to keep an open mind, see this link: http://www.texassynthetics.com/oilcolorlub...nationlevel.htm anyways the oil life indicator is usually saying change engine oil soon in the Caddy. Please explain the above statement it is not clear to me, what do you mean? Pre-1995 - DTC codes OBD1 >> 1996 and newer - DTC codes OBD2 >> https://www.obd-codes.com/trouble_codes/gm/obd_codes.htm How to check for codes Caddyinfo How To Technical Archive >> http://www.caddyinfo.com/wordpress/cadillac-how-to-faq/ Cadillac History & Specifications Year by Year http://www.motorera.com/cadillac/index.htm Link to comment Share on other sites More sharing options...
Astrak Posted October 10, 2006 Author Report Share Posted October 10, 2006 Kinda like what this place does blackstone laboratories. I have heard that also from people I just change the oil around that time because that is when either the change engine oil soon message appears in the DIC so I assumed that you could tell by the color of the oil. Link to comment Share on other sites More sharing options...
WarrenJ Posted October 10, 2006 Report Share Posted October 10, 2006 I don't care what the tests say . . . . Well, in that case there's not much point talking is there? As an aside: there is no magic fluid-in-a-bottle that will do "whatever." Were there such magic there, GM would have included it with your new vehicle purchase and would recommend its continued use. Infomercials are designed for one purpose only: to separate your money from you. Regards, Warren There is no means of avoiding the final collapse of a boom brought about by credit expansion. The alternative is only whether the crisis should come sooner as the result of a voluntary abandonment of further credit expansion, or later as a final and total catastrophe of the currency system involved. - Ludwig von Mises Link to comment Share on other sites More sharing options...
JimD Posted October 10, 2006 Report Share Posted October 10, 2006 .... Infomercials are designed for one purpose only: to separate your money from you. Regards, Warren You can add the 'sure-enough' blatant commercials on those Sat. and Sun. morning carfixerupper shows on Speed channel!! Jim Drive your car. Use your cell phone. CHOOSE ONE ! Link to comment Share on other sites More sharing options...
WarrenJ Posted October 10, 2006 Report Share Posted October 10, 2006 You can add the 'sure-enough' blatant commercials on those Sat. and Sun. morning carfixerupper shows on Speed channel!! Can you say that ten times fast? There is no means of avoiding the final collapse of a boom brought about by credit expansion. The alternative is only whether the crisis should come sooner as the result of a voluntary abandonment of further credit expansion, or later as a final and total catastrophe of the currency system involved. - Ludwig von Mises Link to comment Share on other sites More sharing options...
Astrak Posted October 10, 2006 Author Report Share Posted October 10, 2006 Nah I have read those reports before I purchased a K&N filter, I really never have used one in my other cars except for my 95 Concorde, but I sure did get a response from quite a few people. I change my oil whenever the mileage is up or the thing says change engine oil soon. I don't regularly use seafoam or anything else I think most of it is just a way to get money from consumers. Link to comment Share on other sites More sharing options...
abad95 Posted October 11, 2006 Report Share Posted October 11, 2006 I installed a K&N air filter and it made a world of difference. My STS used to top out at 6000 RPM's,and with the K&N at 6500 RPM's. Besides the Exhaust system,that was the best performance investment for me. Worth every penny... Florin Link to comment Share on other sites More sharing options...
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