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AAA Spills the Truth on Oil Changes

Synthetic Oil Performs Nearly 50 Percent Better Than Conventional Oil In Aaa’s Tests

BELLEVUE, Wash. — Making an informed choice about oil changes just got easier, thanks to new research on the quality of engine oil. AAA found that synthetic oil outperformed conventional oil by an average of nearly 50 percent in its independent evaluation, offering vehicles significantly better engine protection for only $5 more per month when following a factory-recommended oil change schedule. To protect vehicle engines, particularly those that operate in extreme conditions, AAA urges drivers to consider a switch to synthetic oil at their next oil change service.

“Oil protects critical engine components from damage and AAA found that synthetic engine oils performed an average of 47 percent better than conventional oils in a variety of industry-standard tests,” said John Nielsen, AAA’s managing director of Automotive Engineering and Repair. “With its superior resistance to deterioration, AAA’s findings indicate that synthetic oil is particularly beneficial to newer vehicles with turbo-charged engines and for vehicles that frequently drive in stop-and-go traffic, tow heavy loads or operate in extreme hot or cold conditions.”

While only a limited number of vehicles specifically require synthetic oil, all vehicles can benefit from using synthetic oil. At an oil change service, many drivers are offered a choice between conventional or synthetic oil. However, in a companion AAA nationwide survey of U.S. drivers, 44 percent are either unsure (27 percent) or do not believe (17 percent) that the more expensive synthetic oil is better for a vehicle’s engine. Reasons cited for regularly choosing the cheaper, conventional oil include feeling that synthetic oil is too expensive, offers no benefit, that the upgrade to synthetic oil is an unnecessary up-sell by a repair facility, or they are simply not offered the choice.

Switching from a conventional oil to a synthetic oil will cost the average driver $64 more per year, or an extra $5.33 per month. A survey of AAA’s Approved Auto Repair facilities reveals that the average cost of a conventional oil change is $38, while a synthetic oil change is $70. For those that change their vehicle’s oil themselves, the average cost of 5 quarts of conventional oil is approximately $28, while synthetic oil is $45. AAA’s survey also shows that vast majority (83 percent) of service professionals select synthetic oil for their personal vehicles.

“It’s understandable that drivers may be skeptical of any service that is nearly twice the cost of the alternative,” continued Nielsen. “While a manufacturer-approved conventional oil will not harm a vehicle’s engine, the extra $30 per oil change could actually save money in the long run by protecting critical engine components over time.”

The hesitation to select a synthetic oil may stem from American distrust in repair facilities. Another recent AAA survey found that two-thirds of U.S. drivers do not trust repair facilities, with most citing concern over the recommendation of unnecessary services. Those looking for a trusted repair facility are urged to consider one that meets AAA’s high standards, including, technician certifications, ongoing training, financial stability, facility cleanliness, insurance requirements, rigorous inspections and customer satisfaction through the AAA Approved Auto Repair (AAR) program. To locate a shop in your area, visit AAA.com/AutoRepair.

AAA’s engine oil research focused on eight industry-standard ASTM (American Society for Testing and Materials) tests to evaluate the quality of both synthetic and conventional engine oils in terms of shear stability, deposit formation, volatility, cold-temperature pumpability, oxidation resistance and oxidation-induced rheological changes. At the time of testing, all tested oils were licensed by the American Petroleum Institute and advertised to meet the International Lubricants Standardization and Approval Committee’s GF-5 specifications. When selecting an oil, it is critical to reference the vehicle’s owner’s manual to ensure that the oil meets the exact specifications for that particular engine.

AAA’s full research report, fact sheet and additional supporting materials can be found at NewsRoom.AAA.com.

About AAA Washington:

AAA Washington was established in 1904 by 10 prominent Seattleites determined to champion the betterment of motoring conditions and laws, the preservation of Washington state’s natural beauty and the promotion of Washington as an unrivaled tourist destination. Nearly 120 years later, the club continues to pursue these on behalf of its 1.2 million members. 

Members of AAA Washington receive exclusive benefits, including roadside assistance, discounts on hotels and rental cars, comprehensive insurance options, and personalized trip planning. AAA Washington was named a Best Place to Work by Puget Sound Business Journal and voted the best Travel/Tourism Company by 425 Business readers in 2023, and AAA was named one of the most trusted travel and automotive brands in the U.S. Additional information is available through the company’s Washington and northern Idaho stores and at www.AAA.com. 

About AAA Foundation for Traffic Safety:

Established in 1947 by AAA, the AAA Foundation for Traffic Safety is a nonprofit, publicly funded, 501(c)(3) charitable research and educational organization. The AAA Foundation’s mission is to prevent traffic deaths and injuries by conducting research into their causes and by educating the public about strategies to prevent crashes and reduce injuries when they do occur. This research is used to develop educational materials for drivers, pedestrians, bicyclists and other road users. Visit www.AAAFoundation.org.

Media Contact

Fearey o/b/o AAA Washington 
AAA@feareygroup.com 
206-838-9209 

Twitter: @AAA_Washington
Facebook: AAA Washington
Instagram: aaawashington

Interested in planning your next road trip with AAA Washington? Call your travel agent directly or your nearest AAA store to get pro tips, TripTik maps, and more. Find more Pacific Northwest scenic drives and road trips.

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