Police and City Hall Fleet

This letter is a summary of a letter written by the Superintendent of Motor Pool.

This municipality has switched its entire Police and City Hall Fleet (approximately 350 vehicles) to AMSOIL Synthetic Lubricants.

History: In the past, all marked and unmarked police vehicles would come in monthly for an oil change, lube and safety check. As a test, we switched two marked Chevrolet Caprice vehicles over to 100% synthetic AMSOIL engine oil and extended the drain intervals to 20,000 miles, with a new oil filter installed at 10,000 miles. The vehicles were still scheduled to come in monthly for a safety inspection (tires, brakes, suspension, lights, etc...), but the oil is not drained, only a sample is taken. When the two test vehicles reached 70,000 miles, the municipality technicians removed the oil pans and also removed the main and rod bearings to check for wear using the plastic gauge test. The bearings showed very little wear. the same procedure was performed on two marked cars, same year, make and model, using petroleum oil. The wear on the two vehicles with petroleum oil, changed monthly at about 2,500-3,000 miles, showed slightly more wear in the plastic guage test. The results were well within specifications in both cases.

Currently the city is using all Ford Crown Victorias in its police fleet. With the help of oil analysis, we were able to extend our oil changes to 18,000-20,000 miles with a new filter installed at 9,000-10,000 miles. We are currently using AMSOIL synthetic engine, transmission, and rear differential oil in all vehicles serviced out of the city hall facility.

SAVINGS: Savings have been noticed due to the decrease in number of oil filters and quarts of oil purchased and disposed of. Labor time to complete a preventative maintenance (A or B) on a vehicle has been reduced, allowing up to 50% more vehicles to be serviced each day. To date, we have not had to re-build an engine or transmission with the new extended oil change intervals.

Source: Police Dept. in Michigan


If you are looking to make a purchase or wanting to become a dealer, please click the icon below. Amsoil products are primarily sold through catalog ordering. It's only $30 per year to become a dealer. If you wish to order at wholesale (25% less than the prices seen in the catalog), you can become a dealer or preferred customer to get the wholesale costs. The only way to get free shipping is to own a retail establishment and place an order exceeding $8,000. Otherwise if you live within a reasonable distance from one of the 14 warehouses in North America, you can drive in person. Shipping costs are so insignificant that it's often not worth the trouble to go to any warehouse. Since Amsoil has such a large account with UPS, they get a tremendous discount on shipping and pass it down to all of the customers.

Request AMSOIL U.S. Pricing via Email. We'll send it to you immediately. Avoid retail costs! Learn how to get dealer cost on everything now!
First name:

Last name:

Your email address:



Email addresses are NEVER given or sold to 3rd parties. We hate spam. We know you do, too!

Place your order now using the easy application guide

You can place your order immediately by using the application guide. Simply put in your year, make and model of your vehicle and add items right to the shopping cart. Shipping is fast and very economical.

Interstate Battery System of Detroit very satisfied with the results of Amsoil in their fleet!

Running a 10W30 oil for 240 straight hours!

AMSOIL was the first synthetic oil before anyone else.

Mercedes-Benz and motor oil law suits

About the Interceptor 2-cycle oil

Companies wanting to buy out AMSOIL

Harley-Davidson Oil. Which is better? Get the facts.

Regarding your factory warranty going long distances between oil changes.

Crackdown of obsolete oils in California