Posted on 2/21/2013

The crankcase is the lower part of the engine where the crankshaft is housed and where the engine oil lives. The crankshaft is connected to the pistons that power the engine. When you are diving around Wilmot, fuel is burned in your vehicle engine, it pushes the pistons down and the crankshaft rotates and sends power to the transmission. Some of the explosive gases from combustion squeeze past the pistons and down into the crankcase.Now this gas is about 70% unburned fuel. If it were allowed to remain in the crankcase, it would contaminate the oil and quickly turn it to sludge. Sludge is like Vaseline and clogs passages in the engine, leading to damage. Also, the pressure build up would blow out seals and gaskets. So in the old days, there was just a hose that vented the crankcase out into the air. Obviously, not good for our air quality in Wilmot, NH.Enter the PCV valve. It's a small, one-way valve that lets out the gases from the crankcase and routes them back into the air ... read more
Posted on 2/12/2013

Just as our bodies need clean air to function properly, your vehicle engine needs clean air to operate efficiently. Let's go egghead for a minute. For every gallon of gas we burn driving on Wilmot streets, 20 pounds of carbon dioxide comes out the tailpipe. Question: how can a gallon of gas that weighs a little over six pounds produce 20 pounds of carbon dioxide?The answer is that the carbon comes from the gasoline, but the oxygen comes from the air. You see, it takes about 12,000 gallons of air to burn a gallon of gas in your engine. Clearly, your vehicle needs a lot of air to keep going in Wilmot. A lot of clean air is best. You've seen the pictures of people in Japan wearing face masks. They want some kind of filter to keep unwanted pollution and germs out of their lungs. Well, your vehicle also works better when its internals are clean. When your vehicle air filter is dirty ... read more
Posted on 2/7/2013
Most Wilmot auto owners want to save on gas and seek our advice on improving economy. At Walker Automotive, we are frequently asked, however, if it is really worth the extra effort. Just how much money can Wilmot drivers actually save?In today's Walker Automotive article, we're focusing on the things you can do to improve your vehicle’s economydriving around NH. We'll tell you the potential savings per gallon of gas at $3.50, and we'll show a chart that also shows the savings at $3.00 and $4.00. DOLLARS PER GALLON $3.00 / $3.50 / $4.00 TUNE UP 4%.12.14.16 The next item is replacing a clogged engine air filter. Your engine needs enough air to burn fuel efficiently for the best mileage. A clean air filter means you get plenty of air. The fact that the air's clean protects your engine. That can save you up to 10 percent or 35 cents a gallon. DOLLARS PER GALLON$3.00 / $3.50 / $4.00 AI ... read more