Oil pressure should be between 30 and 70 psi, depending on the type of semi you drive. On a truck that has been running for at least 20 to 30 minutes, low oil pressure is defined as less than 20 psi. A decline in oil pressure could signal a serious issue. As a result, your engine may overheat or stall, and you may experience a loss of power while driving. In the sections below, we'll explain why your truck could have low oil pressure and how to correct it. When your truck is experiencing low oil pressure issues, contact Billy Bob's Repair & Tire in San Antonio, TX, to get it back on the road.

Not Enough Oil

A shortage of oil is the most common cause of a low oil pressure reading. This can happen even if your oil has recently been changed or filled. Make sure to keep your truck's oil reservoir above the bare minimum. If not, add oil and inspect your truck for oil spots or leaks. A leaking seal or a worn-out piston ring could potentially cause a lack of oil. As the truck gets older, this becomes more common.

Contaminated Oil or Filter

Contaminated oil might result from a leak or the mixing of fuel, coolant, or water within the engine. A mechanic will need to find and repair the leak in order to solve the problem. Your truck will be out of operation for several days to a week if there is a leak. After that, the oil reservoir must be entirely drained and replenished with new oil. We recommend changing the filter if it is clogged, as this could be a contributing factor to low oil pressure.

Semi Truck Maintenance in San Antonio

When it is time for semi truck maintenance or repair in San Antonio, come see the team at Billy Bob's Repair & Tire. Our crew is highly skilled at all aspects of semi truck services, including fixing oil issues. To learn more, or to schedule heavy-duty truck maintenance, visit our facility or give us a call at (210) 796-3891. We can set up an in-shop or roadside trailer repair service in San Antonio for any make or model.