San Jose Auto Repair

Old fluids usually do not make a big announcement. They do not always make noise right away, and they may not trigger a warning light until something is already wrong. The car keeps driving, so the fluid gets ignored. That is the problem. Engine oil, coolant, transmission fluid, brake fluid, power steering fluid, gear oil, and differential fluid all do more than fill space. They clean, cool, lubricate, seal, regulate pressure, and carry heat away from parts that are expensive to replace. When those fluids age, the wear often starts quietly inside the system. Engine Oil Gets Dirty Before The Engine Sounds Bad Engine oil has a hard job. It lubricates bearings, timing components, camshafts, piston rings, turbochargers on equipped vehicles, and many small passages that need clean flow. It also carries away heat and holds contaminants until the next oil change. As oil ages, it gets thinner, dirtier, and less protective. Fuel dilution, heat, moisture, soot, and oxidation ... read more