The simplest answer to the difference between transmission fluid and gear oil is in the purpose for which they are designed. Transmission fluid is engineered to work with automatic transmissions, whereas gear oil is typically intended to work with manual-type gear boxes.
Can you mix ATF and gear oil?
When different types of oils and greases are mixed together, it can spell disaster for machinery. This is why it’s best to avoid mixing lubricants. … For example, if you mixed 1 gallon of automatic transmission fluid (ATF) with 300 gallons of gear oil from the same mineral group, the dilution would hardly be noticeable.
What is gear oil used for?
Gear oil is designed to protect vital components, including the gears and bearings in the drive axles and differentials, transmissions, industrial gear boxes and power take-off units. Gear oil generally has a higher viscosity for easier distribution and protection through the entire gear set.
What can I substitute for gear oil?
Substitutes for Gear Oil
- Manual Transmission Fluid (MTF) An obvious substitute for the American Petroleum Industry Gear Lubricant (API GL-4 or GL-5) typically used in your vehicle is an appropriate MTF for your make and model. …
- Automatic Transmission Fluid (ATF) …
- Motor Oil.
Is gear oil and transmission fluid the same?
The most obvious answer to this question is that gear oil is generally intended for use in manual gear boxes and transmission fluid is for automatic transmissions.
What happens if you mix transmission fluid with oil?
In most cases, adding ATF to motor oil reduces cleaning power. Instead, ATFs have elevated levels of friction modifiers and other additives that help protect gears and clutches. Second, ATF can disrupt the engine oil formulation and reduce its effectiveness.
Can I use ATF in CVT?
The most common situation where the wrong transmission fluid is used is in the case of using automatic transmission fluid in place of variable transmission fluid and vice versa. Adding ATF to a to a CVT will eventually result in the death of your transmission.
Which gear oil is the best?
Best Sellers in Gear Oils
- #1. …
- Quicksilver 858064Q01 High Performance SAE 90 Gear Lube for Mercury Outboards and MerCruiser… …
- Polaris Premium Synthetic AGL Plus Gear Lube 32 oz / 946 ml. …
- Genuine Ford Fluid XL-3 Friction Modifier Additive – 4 oz. …
- Mobil 1 104361-UNIT 75W-90 Synthetic Gear Lube – 1 Quart.
What is 80W90 gear oil used for?
Lubricant. The oil known as 80W-90 GL-5 is a lubricant for the gears in your vehicle. It is used in automatic and manual transmissions, and assists the gears in shifting smoothly.
Is Thicker gear oil better?
As a general rule high viscosity oils are best for low speed, loaded gears with a rough surface. Higher viscosity provides a thicker film, higher wear resistance, and less deformation of the gears as time goes on. Low viscosity oils, on the other hand, are best for high speed systems with lower load.
Should I use synthetic gear oil?
However, if the environment is more severe, the temperature runs extremely high or low, there are extended oil drains, or the impact of a failure is considerable enough to justify the cost, then you should choose a synthetic oil.
Can I use engine oil as gear oil?
Home / Technical infos / F.A.Q / Can I use engine oil for the gearbox? No, the majority of gearboxes require a special formulated lubricant for the transmission system. whose crankcase is common between the engine and the transmissions. Like engine oil, the gear oil must comply with the manufacturer’s requirements.
What gear oil is the thickest?
SAE 75W-90 maintains a more consistent thickness, or viscosity, across a wide temperature range. It’s thicker when exposed to high heat and thinner under colder, wintry conditions than 80W-90. The use of 75W-90 gear oil is recognized by OEMs as a contributor to overall fuel economy.
Can I put ATF in a manual gearbox?
Will automatic transmission fluid work in a manual transmission? Yes – provided the original equipment manufacturer recommends it. It’s important to check your owner’s manual to make sure before dumping ATF in your manual transmission. In fact, some manuals may call for a gear lube or even a motor oil in older units.
What is the best manual transmission fluid?
Best Transmission Fluid Reviews & Recommendations 2020
- Best Overall. Castrol Transmax Dex/Merc ATF. …
- Best Value. ACDelco Dexron VI Synthetic ATF. …
- Honorable Mention. Red Line GL-4 Manual Transmission Lubricant. …
- Honorable Mention. Royal Purple Synchromax. …
- Honorable Mention. Ravenol DTF-1 Transfer Case Fluid. …
- Honorable Mention.
Can I put gear oil in my transfer case?
Transfer cases may be filled with gear oil, automatic transmission fluid (ATF), or specialty lubricants. It is important to regularly inspect the transfer case for any damage, leaks, or other concerns.