Debunking 3 Motor Oil Myths

September 27, 2021

Motor oil pouring from a black container, with a blurred engine background.

Engine oil or motor oil is the most frequent and ultimate responsibility for every car owner. Your vehicle depends on oil to enable the various parts of your engine to run without bumping against each other. It also serves to lubricate the engine and stabilize the high temperatures under the hood. There are many rumors surrounding engine oil, and it's time to give it to you straight. Here are some of the most common motor oil:


  1. You should have your oil changed every 3,000 miles. You may often hear the phrase "every 3,000 miles" associated with oil change intervals. However, the number 3,000 isn't as significant as you may have thought. Nowadays, most vehicles use synthetic or synthetic blends that are higher in quality and can go as long as 8,000 to 10,000 miles between each change. To find the best interval for your car, please refer to your owner's manual for the specific number.
  2. You cannot switch back after switching to synthetic oil. This misconception is a myth that irritates most mechanics. The truth is that switching between synthetic and conventional oils will not cause any damage to your engine at all. More specifically, synthetic blends are very safe since they are a mixture of both synthetic and conventional.
  3. All oil additives are the same! This statement is simply not true at all. All oils are designed with different formulations to support your engine in various ways. Some oil additives are engineered to handle high pressure and heavy use, such as ones suitable for race cars. Some additives are made to help older, higher-mileage automobiles last longer by preserving their parts. You should research and examine oil additives and choose the best characteristics suitable for you and your vehicle's needs.

Were you shocked by any of these myths and their truths? If your vehicle needs an oil change soon, we invite you to bring your vehicle to Accomplished Auto. Our expert team can help you pick out the most suitable oil for your engine. Give us a call or visit today if you have any questions!

February 26, 2026
Learn how to safely put on a spare tire, what tools you’ll need, and when to visit Accomplished Auto in Concord, NH, for professional tire service.
By clint February 17, 2026
With inspections on hold, it’s up to you to stay compliant. Learn what’s changed, what hasn’t, and how Accomplished Auto can help you keep your vehicle safe and legal under RSA standards.
By clint February 12, 2026
Suspension Repair in Concord NH | Spring & Strut Service
By clint February 9, 2026
Auto Diagnostic Fees Explained | Expert Troubleshooting in Concord NH
5 Signs You’re Too Tired to Drive Safely | Accomplished Auto
January 30, 2026
Accomplished Auto in Concord, NH, explains five signs you are too tired to drive safely.
By clint January 29, 2026
Court Injunction Halts Repeal of NH Vehicle Inspections — Annual Safety Stickers Still Required in 2026
By clint January 21, 2026
Why a Properly Working Car Heater Is Essential for Comfort, Visibility, and Safety During New Hampshire’s Extreme Winter Cold
By clint January 15, 2026
How Severe Duty Driving Impacts Uber, Lyft & Delivery Vehicles in Concord, NH
By clint January 7, 2026
Understanding modern exhaust sensors, accurate diagnostics, and why proper testing saves you money
By clint January 7, 2026
How Winter Salt and Road Debris Can Turn a Small Tear into a Big Repair