Audi Oil Change Services | Audi St Paul

You have probably heard it for as long as you've been driving…"oil changes at 3,000 mile intervals are crucial to engine life" 

Like everything else, motor oil has changed and improved a great deal and the 3,000 mile rule doesn't really apply anymore. It's still true, though -- oil changes at regular intervals are the best way to get the most miles out of an engine. 

What Makes Oil Changes So Important?

Between the combustion process and the friction between moving parts working at close tolerances with each other, an internal combustion engine generates a great deal of heat. A film of oil is crucial to the lubrication of moving parts - without it, the engine would lock up in a very short time. Unfortunately, the carbon, microscopic particles of metal, water vapor and acids from the combustion process also contaminate oil over time. The element of the oil filter will trap these particles, but when the filter is saturated they will circulate in the engine, suspended in the oil.

If you've ever seen the inside of a poorly-maintained engine, you'd see sludge and carbon on assemblies like valve components and bearings. These deposits will definitely contribute to premature wear and shorten engine life. 

Synthetic Oil or Conventional Oil?

The verdict is final: synthetic oil exceeds conventional oil in protection.  Here's how: 
  • Conventional oil will thin out at high temperatures and thicken in cold weather, making it slower to reach the upper end of the engine at startup. Synthetic oil stays at the same viscosity across all temperatures. 
  • Synthetic oil has greater shear strength, meaning the molecules are more stable and won't be crushed in the extreme pressure of tight engine tolerances.  
  • Synthetic oil doesn't contain the paraffin-like contaminants found in conventional oil. 
  • The additive packages of detergents and friction modifiers in synthetic oil outperform conventional oil. 
  • Synthetic oil may be more expensive at each oil change, but the longer oil change interval of about 10,000 miles (check your owner's manual for manufacturer's recommendations) helps offset that extra expense. 

Warranty coverage from manufacturers now requires synthetic oil for new vehicles, and often a low-viscosity oil that enhances engine efficiency by cutting friction. Warranty coverage can be voided by not using manufacturer-recommended oil. 

Make oil changes part of your regular maintenance schedule. Set up an appointment with Audi St Paul for factory-certified service with genuine Audi parts! 

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