Oil Changes

Not all car engines are the same. Whether you are running a hybrid or an older model vehicle, we know the right type of oil for you. Your car’s manufacturer will recommend an ideal viscosity for the engine, based on several different factors, including temperature. This is because engines often need a different viscosity based on operating conditions.

With the right viscosity in mind, it’s time to start shopping for a type of oil. Most commuters follow the 3-month and 3,000-mile rule. Frequent oil changes means there’s less tendency to need other types of oil than conventional. However some car companies, like Mercedes-Benz, recommend only synthetic oil in their cars. The following list, as well as the car’s owner’s manual, will provide a good idea of what type of oil to use. It’s also a good rule of thumb not to switch between types. If your car started with conventional, stick with that. If it first used synthetic, be wary about switching to conventional.

  • Conventional oil: This is the oil used in bulk at dealerships and is the cheapest at the auto store, too. Most adhere to API and SAE standards but offer little in the way of additive packages. This is good oil for owners that are religious about frequent oil changes and have low-mile (but well broken-in) engines.
  • Premium conventional oil: This is the standard new-car oil. Most leading brands have one for SL, or highest level, service. Most are available in the common viscosity. Car manufacturers usually specify 5W-20 or 5W-30 oil, though some require 10W-30. These three ratings cover just about every light-duty vehicle on the road, though this is changing as engines become more precise and fussy about specific types oil.
  • Full-synthetic oil: These oils are made for high-tech engines. If these oils pass stringent special tests (indicated by their labeling), it means they have superior, longer-lasting performance in all the critical areas, from viscosity index to protection against engine deposits. They flow better at low temperatures and maintain peak lubrication at high temperatures. While excellent oil, synthetics are about three times as expensive as conventional oil and not always necessary for most engines.
  • Synthetic-blend oil: This is essentially premium conventional oil hit with a dose of synthetic. They’re formulated to offer better protection during heavier engine loads and the associated higher engine temperatures. These oils are popular with pick-up and SUV drivers because they do offer better protection, but usually cost only a fraction more than premium conventional oils.
  • High-mileage oil: More than 60 percent of vehicles on the road have more than 75,000 miles on the odometer. Playing to this growing market, oil refiners and labs developed high-mileage oils. Seal conditioners are added to the oil (the oil can be synthetic or conventional) to expand and increase the flexibility of internal engine seals. The conditioners are very precise and can benefit some engines while not affecting others.

Turn to John’s Park Street Automotive when you have transmission problems. Our expert staff will help you understand the pros and cons of each type of oil and provide you with a fair price on your next oil change. We care about your car and can help you maintain it to prevent future problems. Rely on us to keep your car running as long as you want it to.