Is STP oil good oil?
William Brown
Published Apr 21, 2026
Is STP oil good oil?
STP may not be as popular of a brand as Pennzoil or Quaker State, but it still offers an affordable, quality oil. Scientifically formulated to insulate your engine from wear and tear, this conventional motor oil controls sludge formation while cleaning vital engine components.
What is STP oil used for?
STP® Oil Treatment (in the blue bottle) helps protect against engine wear with a high-viscosity formula, which fights metal-to-metal friction by providing a thicker cushion of oil between moving engine parts. It can be used in all cars, trucks and SUVs.
What brand is STP oil?
STP is an American brand of automotive aftermarket products, especially lubricants such as motor oil and motor oil additives. The name began as an abbreviation of Scientifically Treated Petroleum. The brand has been owned by Energizer Holdings since November 2018.
Does STP Oil Treatment increase viscosity?
STP® 4-Cylinder Oil Treatment (in the red bottle) also helps protect against engine wear by increasing oil viscosity, which provides a thicker cushion of oil between moving engine parts and reduces metal-to-metal friction.
Is STP good brand?
STP motor oil can be a good choice for you if you want your car engine to have a lower oil consumption and cleaner engine. It is most frequently used in diesel engines. If you have a vehicle of diesel engines, then the STP motor oil will provide you the best performance in both hot and cold weather.
How do you use STP oil treatment?
STP® Oil Treatment Petrol For extra engine protection
- Directions. STP® Oil Treatment Petrol should be added to the engine oil when the engine is warm, at a rate of one 300ml can to 3 litres of oil, or one 450ml bottle to 4 or 5 litres of oil (10% treat rate).
- Is it safe to use in my vehicle.
- Take Note!
Is STP oil synthetic?
STP® SYN Full Synthetic Motor Oil Scientifically formulated to insulate your engine from the damaging effects of wear while helping to protect vital engine components.
Are STP oil filter any good?
Are STP oil filters any good? STP filters are an excellent construction made of durable materials that effectively remove contaminants from motor oil. Again, they lack the silicone anti-drain valves at the back, yet the filter seems excellent and allows a proper fluid flow.
Why is my engine oil so thin?
A number of things can cause engine oil to become too thin to protect engine parts. Excessive mechanical shear can thin oil to the point of causing issues with engine protection. Fuel contamination of the oil sump is another major cause of excessively thin engine oil.
Does STP oil Treatment thicken your oil?
The addition of an aftermarket additive, such as STP, generally thickens the oil. Such products can add about 10 viscosity points to an oil. In some very limited cases, thicker oil can help some older cars with extremely worn engines. The thicker oil can help reduce excessive oil consumption.