A question we sometimes get is – “Curious about oil changes. Synthetic has been around 15000 miles. Looks like you recommend 5,000?

To which we are glad to reply, “Great question!
Yes, we do recommend a shorter interval for older cars.

We have an expression, “Oil is cheaper than metal,” I’ll explain. We all know that oil is used to lubricate the engine components to maximize wear and tear, it also serves transfers heat and helps filter out contaminants from engine operation.

Here’s Why
First, let’s address why we change the oil. It’s for two reasons, one is that components in engine oil break down from the heat and mechanical operation of the engine. Second, oil acts as a carrier to remove the waste or byproducts of combustion from the engine itself, and trap it in the filter. During the process, small particles don’t get filtered out, and oil becomes “dirty”.

I think the 15,000-mile interval is fine when a car is newer, and the engine has no wear or byproducts of combustion to contaminate the oil. But in my experience, older engines and engines with higher mileage, contaminate the oil quicker due to wear. So we’ve shortened up the intervals. I know it works as we have vehicles with 200,000 to 400,000 miles on them, original engine and transmission.

Extra Credit Reading
You might be interested in reading this –

5,000 miles also works well for the standard tire rotation intervals as well, Michelin, in particular, requires no more than a 6,000 intervale between changes.

But we respect our customer’s wishes, and if they want to stay on the 15,000 intervals, we’re happy to do that.

Our Goal For You and Your Car
Our goal is to save you money, not spend it.
Which is why each and every car that we service gets a free Courtesy Maintenance Inspection during its first visit, and every
subsequent visit.

Our goal is to let you know about the small problems, before they become big ones.
Right now we have number of customer cars with well over 200,000 miles, and several approaching 300,000!
And these cars are not just limping along – most look and drive pretty much the way they came out of the showroom.

Proper maintenance is an investment in the life of your vehicle.
Be sure it is properly performed, take it to Atlantic Motorcar…Extraordinary Service for Extraordinary Cars. (207) 882-9969