If you own a hydraulic jack, you know how essential it is for lifting heavy loads, whether you’re changing a tire or working on your car. But what do you do if you run out of hydraulic oil? Can you simply use motor oil as a substitute? It’s a common question among DIYers and car enthusiasts, but the answer is not as straightforward as you might think. In this blog post, we’ll explore the pros and cons of using motor oil in your hydraulic jack and whether it’s a safe and viable option. So, let’s dive in and find out the surprising truth!
Can I Use Motor Oil in My Hydraulic Jack?

No, it is not recommended to use motor oil in a hydraulic jack. Hydraulic jacks require a specific type of hydraulic oil that is designed to provide the necessary lubrication and pressure required to lift heavy loads.
Using motor oil or any other type of oil that is not specifically designed for hydraulic jacks can cause damage to the jack’s seals and other components, leading to leakage or failure. Additionally, motor oil may not provide the same level of lubrication or viscosity as hydraulic oil, which can result in decreased performance and safety issues.
Therefore, it is important to always use the recommended type of hydraulic oil for your specific jack to ensure proper operation and safety. You can check the manufacturer’s instructions or consult with a professional mechanic or hydraulic specialist to determine the appropriate type of oil to use for your jack.
What is a Hydraulic Jack?
A hydraulic jack is a device that uses hydraulic pressure to lift heavy objects. It consists of a pump, reservoir and piston rod. When you turn on the pump, it creates pressure in the reservoir and pushes up against the piston rod. The force generated by this action causes your car jack to rise up until it reaches its maximum height (usually about 2 feet).
When you turn off the pump and release pressure from within, gravity pulls down on both sides of your car’s weight as well as its own weight–so much so that it will remain at its highest point even after turning off all power sources!
What is Motor Oil?
Motor oil is a lubricant used to reduce the friction between moving parts in an engine. It also helps prevent rust and corrosion, keeps dirt from sticking to components and helps cool down the engine.
Motor oil has several components that make up this complex mixture:
- Petroleum distillates (mineral oils) – These are hydrocarbon compounds extracted from crude oil by distillation. They are highly refined into various types of base stocks for use as lubricants in engines, hydraulic jacks and many other applications where lubrication is needed.
How to Properly Use Motor Oil in a Hydraulic Jack
When you have to lift heavy objects, a hydraulic jack can be a great tool to have on hand. However, it’s important to know that motor oil should not be used in these jacks because it can damage the seals and cause them to leak. If you want to use your hydraulic jack with motor oil instead of hydraulic fluid or water, here are some steps that will help ensure proper use:
- Make sure the fluid reservoir is filled with fresh fluid before using your jack for any reason at all; if there is any doubt about whether or not this has been done recently enough (for example, if there was an accident with another vehicle), then drain out all remaining fluids first before refilling with fresh ones again afterward!
- Always wear protective clothing when handling heavy objects such as these jacks; this includes goggles/glasses/masks etc., as well as gloves made from leather or other non-conductive materials which will prevent burns from occurring during contact between human skin and metal surfaces within proximity range (such as those found inside vehicles).
- Never leave children unattended near any type of lifting equipment such as hydraulic jacks–even those without motors installed into them yet still contain hazardous chemicals such as gasoline fumes coming out through vents located near ground level where kids’ heads could easily bump against one accidentally while playing around outside during daylight hours when everyone else goes inside after dark due being scared away by noises coming outside late at night time hours due having nightmares every time they go back home after seeing lights flashing bright green color along side yellowish white light shining brightly too close together making people think twice before entering house again once more time.”
Common Issues with Using Motor Oil in a Hydraulic Jack
If you’re using motor oil in your hydraulic jack, there are some potential issues to be aware of. The first thing to check is whether or not the hydraulic fluid has leaked out of the system. If it has, then you’ll need to add more before continuing with your work.
Another common problem is that the motor oil may not be compatible with certain types of jacks–this can cause damage over time that may require repairs or replacement parts (which can get expensive). To prevent this issue from happening, make sure that whatever type of fluid you’re using meets all safety standards for use with hydraulic jacks.
If these steps don’t solve your problem and/or if things start getting worse after adding more fluid or switching brands/types: contact an expert!
Benefits of Using Motor Oil in a Hydraulic Jack
The benefits of using motor oil in a hydraulic jack are numerous. First and foremost, it’s cheap. You can pick up a gallon of motor oil at your local auto parts store for just a few dollars. If you’re using the jack to lift heavy items or equipment, this will save you money on the amount of hydraulic fluid that would have been required otherwise. The second benefit is that motor oil is readily available–you probably already have some sitting around the garage somewhere!
Thirdly, if you’ve ever had problems with leaks from hydraulic jacks before (and let’s face it: who hasn’t?), then using motor oil will help prevent those leaks from happening again because it seals better than regular hydraulic fluid does when mixed together with air bubbles during use.
Conclusion
In conclusion, I would like to say that motor oil is a great alternative for hydraulic jacks. However, it should be used in small quantities and only on occasion as it can damage your jack if used too often or in large amounts. If you are looking for an alternative to motor oil for a hydraulic jack, then my recommendation would be WD-40 because it has similar properties and will not damage your equipment like regular motor oil does.