The guys at Winkler are always so friendly and knowledgeable. They explained to me that I didn’t need to return every 3000 miles for an oil change, and that my dealer was gouging me! So nice to have a service center so close to my work, too. Love the oil change promotions!!
Thank you Cara for your wonderful review. While many shops and dealers out there still advocate a 3000-mile oil change, we have decided instead to rely on science and data to make our decision to establish our oil change intervals at 5000 miles for conventional oil and 7500 miles for synthetic. The reason behind our decision is two-fold: advance in oil technology, and the environment. Today's oils are much more resilient than they were 10 years ago, with some oil manufacturers claiming 10,000 miles between oil changes. Some car manufacturers have even started to recommend 10,000 mile oil changes. But there is a very improtant caveat to keep in mind: these claims are based on tests conducted on engines running in optimal conditions. Unfortunately, driving conditions in the Washington DC ara are rarely optimal - stop-&-go traffic is more the norm, and these conditions mean that engines usually run hotter than optimal, because the cooling system, which does require air flow through the radiator, is not occuring as designed most of the time. This extra heat degrades the additives added to oils to protect engines from wear and tear. Another degrading factor for oils is humidity in the air, which over time will contribute to oil degradation. We have replaced in the last few years many engines on newer cars whose manufacturer claimed the larger mileage intervals between oil changes. Clearly the jury is still out on this one. So we dont advocate going as high as 7500 miles on conventional and 10000 on synthetic as oil and car manufacturers would lead you to believe (read the fine print...). Another reason why I belive the oil change intervals need to be raised from the old 3000 and 5000 standards is because of the environmental strain it causes. An average driver in the US drives about 12000 miles/ year. At 3000 miles oil change interval, you need 4 oil changes. At 5000 miles oil change interval, you need 2. Now it may not seem much, but think on a larger scale: each time, on average 5 new quarts of oil are needed for an oil change. Now multiply that by the millions of cars out there. Indeed going from 4 to 2 means a lot of new oil can stay in the ground a little longer, which mother nature would thank us for! We found that a safe interval would be 5000 miles for conventional oils and 7500 miles for synthetic oils. Thanks again for choosing us to service your vehicle. Sincerely, Karim.
- Winkler Automotive