You see those cryptic combinations of letters and numbers on motor oil bottles everywhere. What do they mean? To decipher them, you have to understand viscosity. Viscosity measures how much the motor oil can resist flow. In other words, if you tip a motor oil bottle over, how fast it spills out indicates its viscosity. The more viscous, the slower it moves.
Octane. You see the word every time you visit the gas station but what does it mean? Octane ratings measure fuel's ability to resist engine knock. Engine knock is caused by fuel being ignited by something other than the spark plug.
Before you buy your next light bulb you should know the ins and outs of halogen bulbs! Most new-model vehicles have halogen headlights because they produce more light than a regular bulb. Be careful: like all halogen lights, touching the glass bulb means that bulb is contaminated with oil that can heat up and cause burnouts more quickly.
This simple barrier of accordion-folded paper may look insignificant but it's responsible for providing clean air to your vehicle's cylinders. This is important because air is just as crucial as fuel in the combustion process that powers the engine. Air is drawn through the engine air filter, then the air intake manifold and into the cylinders. There, it mixes with fuel to create the small explosions that power your vehicle.
A dirty engine air filter can prevent the cylinders from drawing in enough air, which throws off the fuel/air mix. This can result in poor fuel economy.
Every so often you notice it: The transmission shifts a little late, or maybe it seems to miss a gear entirely. Then it’s okay again… for a little while. Worst of all, there’s no rhyme or reason behind the condition. One minute it’s fine, the next it’s not. So you pop the hood to check the transmission fluid level. Then you notice it: A big mountain of corrosion on the battery terminals. You’ll have to take care of that, but it can’t have anything to do with the transmission, right?