Are you a fan of favourite episodes now available on You will find  top gear here too... get the best answers to... fix your car problems,  find the best car spares,  knowledge which car spares do I need? - main dealer, accessory store, motor factors, eBay, breakers yard Plans To Drive Sales Of Parts Through eBay the latest large company to sell on ebay.online shop on ebay UKcutting out the dealer network.now you go to your keyboardorder How safe is your car?....find out  here... BMW, Honda models do well in Euro NCAP, an independent organization which crash tests cars has published its list of the safest new cars in Europe. The results are based on crash tests carried out in 2010.Cars, vans to avoid here China wants to become the world leader in 'so-called' clean-energy cars, planning to invest more than $14 billion in new technology by Main Dealers, Motor Factors, Accessory Shops, Reconditioning Firms, Breakers Yards, eBay,

When buying Spares know what You are buying New Spares from Main dealers... New and Original Equipment Manufacture (OEM) ....this is the part that you might buy from your local Ford or BMW main dealer. It's made by the same manufacturer who made your car in the first place. These spares will generally be 'good' quality and priced accordingly! Pattern Spares from Motor Factors, Accessory Shops These outlets sell new parts... but a copy or pattern of the manufacturer's part. Try these for Deals... less well known but worth a try is Eurocarparts, A1 Motor Stores, Eastern Autospares, GSF, Tesco Sainsbury's  John Lewis dixons mattressman bootsebay  pricerunner Free information to help you solve your car Car Mechanics November 2014 Sampler Car Mechanics has had a full service with a fresh new look inside. NEW Car Mechanics On Sale Now!Written You are certainly well informed. A manufacturer would prefer reliability over outright performance.

Based on the data they improve the performance step by step, a never ending process. Let me explain some traits required for an efficient air filter. TL;DR Stick with OEM filter, it is quite difficult to achieve both dirt capturing ability and maximum airflow with out trade-offs. Filtering Efficiency - Ability to capture dirt. OEM filters are optimised to capture dirt. Accumulative Capacity - Dirt loading capacity before reaching the maximum restriction limit. OEM filters are not designed to be reused and hence holds off more dirt before clogging. Dust Loading - Restriction to air flow before reaching the maximum restriction limit(clogging). OEM filters nearly have nearly linear response to an increasingly dusty air. High performance filters have lower initial restriction, but they become exponentially more restrictive under a constant flow of dirt. Restriction to flow - Trade-offs are very evident they do offer lowest resistance, but they let go more dust in the process. High performance filters saturate faster, pass more dirt and capture less dirt.

The dust that gets into the chamber will slowly wear the piston rings, which burns the engine oil, reduces the power and leads to the seizure of engine. A paper filter loses all its filtration ability if they are wet. This is why many off-road filters are foam. It is a compromise between filtering efficiency and protection from a collapsed filter. This is a highly unlikely scenario for a normal commuter. It's a truth that an engine cannot fully make use of the increased air flow provided by free flow filters. air liquide alphagaz purifierThe stock filter will flow more than enough air to give all the horse power the engine can generate. vintage rexair vacuum cleanerAnd this remains true until the filter is clogged and then performance will decline. honeywell pet cleanair air purifier for pet owners hht-013

Replace the filter a little before the recommended interval if you are riding in dusty environment. Source : K&N Air Filter Review - Debunking the Myths (and why OEM is better)Written My take on K&N air filters is this: If they really worked that well, they'd come stock from the factory. Car manufacturers spend tons of money on engineering to eek out every last MPG they can get without having too much of a hit on profits. If a simple air filter can have a significant impact, they'd use it. Does Porsche recommend them? Further, you can't get more air through a given opening unless you reduce any restrictions. Reducing restrictions in the context of a filter means less filtering of finer particles.  Written K&N was originally developed for racing where you need maximum flow, but aren't all that concerned about longevity of your engine as the abuse you give it while racing means you have to rebuild it every season anyway.  K&N, like many other products used for racing, became mainstream because, if racers use it, it must be good for the street too.

In reality, the stock paper filter flows more than enough air for your stock engine.  More air at the filter does not necessarily mean more power for the stock engine.  Because there are restrictions in the airflow beyond the filter.  Changing or removing the filter doesn't change the already existing restrictions beyond the airbox.  K&N works by spraying a film of oil on the outside of the filter which is made with high flow materials.  The oil captures dirt and dust.  It is reuseable and cleanable.  The issue I have with them, is that they don't start capturing dirt and dust particles with the same efficiency as the stock filter until they get some dirt and dust on them.  This means they are passing some of that through to the combustion chamber.There are many tests of various filters on the web, including side by sides with the K&N.  They show flow numbers and how they work.  In almost all cases, with a stock engine, the original filter flows more than enough air to supply everything the engine can use.