Convoy Engine Oil
The Conklin brand engine oil increases the longevity of your engine and increases performance and durability. Let your engine run smoother and longer with Convoy engine oil. Choose your oil below.
Convoy® Motor Oil

Convoy motor oils contain Molybdenum as a frictional modifier for improved performance and efficiency. Conklin brand oil is engineered to reduce oxidation and decrease friction throughout your engine. Conklin brand oil is also engineered to maintain superior levels of lubricating stability much greater than its competitors. Imagine changing oil every 30,000 miles instead of every 3,000 to 5,000 miles. The Oil Analysis kit below will show when it’s time to change your oil.
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The following is only one example of many satisfied Conklin customers:
“Conklin products have been the foundation of my vehicle maintenance program. I’ve been using Conklin Vehicle Products exclusively since I bought my Suburban in 1994. With over 904,000 miles, it still runs like new. From Convoy Motor Oil and Gold Guard Plus to Fuel Conditioners and Appearance Products, I count on the longevity that Conklin products provide.” Ben W. Nebraska
Conklin recommends testing the motor oil as required by your vehicle manufacturer. A detailed oil analysis report will show when it is time to change your oil. You can find the products for testing the oil and more details below. Always follow Conklin usage instructions carefully when using the Conklin brands.
Prepaid Oil Sample Bottle

Oil analysis is the key to extending drain intervals and providing pertinent information about oil and engine condition for family vehicles, farm equipment, and over-the-road trucks. Protect vehicles and equipment through regular oil testing. Submit your oil sample using the Prepaid Oil Sample Bottle as well as the Oil Sampling Pump & Instruction Sheet and specialized plastic tubing (sold separately) for complete oil analysis.
We have included the instructions on how to use this kit in the read more section below…
How do I take an oil sample?
Oil analysis is the key to extending drain intervals and providing pertinent information about oil and engine condition for family vehicles, farm equipment, and over-the-road trucks. Protect vehicles and equipment by performing regular oil testing. Submit your oil sample for complete oil analysis.
Conklin recommends an oil analysis before extending oil change intervals. Follow the steps below to determine optimal intervals:
- First, you need to purchase the Prepaid Oil Analysis Bottle and the Oil Sampling Pump & Instruction Sheet from Conklin. (It is best to sample the oil when it’s warm.)
- After putting the oil sample in the bottle, you use the mailer to send it to the testing facility.
- Change oil filter and take a sample of the oil at every recommended drain period.
- Change the oil when the oil analysis report states that it needs changed.
- Once you determine the baseline for oil drain interval, you may not need to sample the oil at every recommended drain interval.
- Always change filter at every recommended drain interval.
- Oil filters must be changed according to manufacturer’s recommendations.
Conklin Oil Analysis Directions:
- First, hook the tubing up with the pump.
- Then, screw the sample bottle onto the pump.
- Remove the oil dipstick and place the tubing into the dipstick tube.
- Begin to pump.
- Unscrew the bottle when it is almost full to release the pressure and stop the flow.
- Complete the paperwork and mail it in.
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Oil Sampling Pump & instruction Sheet

This pump is used in Conklin’s oil analysis kit, which helps extend oil change intervals. The Oil Sampling Pump is an easy, convenient, consistent, and clean way to pull an oil sample. The Prepaid Oil Sample Bottle screws directly into the pump and the specialized plastic tubing (available by the foot) goes down the dipstick tube. Then the pump draws the sample.
While we suggest switching to Conklin’s Convoy engine oil, some individuals prefer to use their choice of engine oil and simply use TKO® Advanced Performance to add longevity to their engine…
Using TKO at short oil change intervals eliminates the need for testing your oil, but there is still much life in TKO even at 10,000 miles. However, regardless of how you choose to use TKO or even the Conklin engine oils (Convoy), your engine will thank you over the long run. While the following customer likely followed the manufacturer’s instructions and used the oil sampling kit, you can achieve the same results if you chose to change your engine oil at your regular preferred oil change intervals.
“Conklin products have been the foundation of my vehicle maintenance program. I’ve been using Conklin Vehicle Products exclusively since I bought my Suburban in 1994. With over 904,000 miles, it still runs like new. From Convoy Motor Oil and Gold Guard Plus to Fuel Conditioners and Appearance Products, I count on the longevity that Conklin products provide.” Ben W. Nebraska
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Plastic Tubing for Oil Analysis

Tubing used in Conklin’s oil analysis kit. Regular oil analysis will help protect vehicles and equipment. This specialized plastic tubing is part of Conklin’s Oil Analysis Kit, which contains an Oil Sampling Pump & Instruction Sheet and Prepaid Oil Sample Bottle (purchased separately), provides pertinent information about oil and engine conditions for family vehicles, trucks, and farm equipment.
Please let us know if you have any questions about these products. If you are interested in Conklin brand oil, you may simply click your oil preference below. Thank you for shopping with us!