The Stanley Subaru Scoop

Road dust, fuel system condensation and engine-oil sludge are unseen enemies that can cause harm to your engine, or prevent it from working at its best. Your best defense? Come get genuine Subaru filter replacements to help ensure that your engine lives a healthy, high-mileage life. When each filter needs replacement varies, but you can always look it up in your manual or on our maintenance schedule.

Certified Master Technician Chris Williams answering questions from guests about key parts of their engine and transmission

Oil Filters

Motor oil circulates through your engine to lubricate all the moving parts. Along the way, dirt, grit and fine metallic and carbon particles contaminate motor oil and, if improperly filtered out, may ruin your engine. Today's high-detergent oils are formulated to suspend contaminants until they can be effectively trapped by the oil filter. Regularly changed oil filters protect your engine by removing the suspended particles from your motor oil.

We're not kidding about the fine metallic particles, though. When a filter isn't changed (for a long time), we've seen what looks like the finest glitter in the world suspended in the oil. The metal in the oil careens off the sides of the channel and can form little nicks, putting more metal flakes in the oil. The oil does what it can, but that kind of thing wreaks some real havoc on your engine and costs way more than an oil filter or two.

Fuel Filters

Today's sophisticated fuel injection systems demand clean fuel in order to run smoothly. From the gas tank to your engine, fuel can pick up contaminants like dirt and condensation. If these contaminants are not properly filtered out they will cause reduced engine performance, rough idling, and may eventually damage the sensitive fuel injection components. Fuel filters changed using the recommended maintenance schedule can help you avoid expensive repairs. An ounce of prevention is worth a pound of cure, etc. etc.

Air Filters

Your engine needs a great deal of air to run properly. (I mean, obviously. This is why cars have grilles, right?) If air is not properly filtered, dust and other suspended particles get into the combustion chamber where they may become lodged between the piston and cylinder wall, which, as you can imagine, is real bad news. This causes wear and can cause warping. Wear and warping, in turn, may result in loss of acceleration, decreased power, and lower gas mileage, and (eventually) a busted engine.

Categories: Service
Tags: how to, advice

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