Berkeley Auto Repair

Everybody knows that changing engine oil is important – but why is it?  We will talk about four reasons, only one of them being the engine itself. The oil lubricates the engine, allowing moving parts to function smoothly with minimal friction. As the engine oil gets older, the combination of age, heat, mechanical work, and environmental factors causes engine oil to be less effective at protecting the engine. So what happens to the engine oil? Engine oil’s chemical properties degrade – age, repeated heating and cooling, and oxidation cause detergents that clean the engine surfaces, and dispersants that cause debris to be suspended in the oil, to break down. The oil becomes thicker, highly acidic, and does not create effectively a protective film on the metal components. On top of the chemical factors, there are mechanical problems caused by the old engine oil. As it ages, it picks up microscopic debris – normally they are caught on the oil filter, but once ... read more

Firestone did a study of over 9 million cars that were brought to their centers, and found that 42% suffered from underinflated tires – and that’s a national average. When broken out by states, California came in at the third worst position with 57% rate. Since underinflated tires increase rolling resistance, Firestone calculated that US drivers waste over $18 billion per year on additional fuel. Underinflated tires may seem like a minor issue, yet if you consider all the effects of underinflated tires, it can have consequences that go far beyond your wallet.  Here are the issues you may encounter when driving with underinflated tires: Increased fuel consumption Handling difficulty Increased braking distance Less stability when cornering or making emergency maneuvers Uneven tire wear which often results in premature need for tire replacement Increased risk of blowouts Steering feels unresponsive Suspension stress Driving in the rain: increased probability of ... read more