Can I use 80W90 instead of SAE 80? Because the viscosity of gearbox and engine oils are measured on different scales, an SAE 80 gearbox oil is roughly equivalent in viscosity to an SAE 20 engine oil .
What is equivalent to SAE 80 gear oil?
Because the viscosity of gearbox and engine oils are measured on different scales, an SAE 80 gearbox oil is roughly equivalent in viscosity to an SAE 20 engine oil .
What is the difference between 80W and 80W90?
| Name 75w90 80w90 | Density 0.86 0.90 | Kinematic viscosity at 40 oC 110 139 | Kinematic viscosity at 100 oC 19.2 15 | Viscosity 115 105 |
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What is SAE 80W90?
SAE class 80W90 transmission oils consist of high-quality base oils combined with an effective phosphorus-sulphur additive package . This gives them an outstanding viscosity-temperature behaviour and they can be used all year round.
What is 80W-90 used for?
Gear Oil 80W-90 is designed for use in differentials, both hypoid and limited slip, manual gearboxes, transfer cases and transaxles in passenger cars, light commercials, 4WDs, trucks, construction, earthmoving and agricultural equipment, where this viscosity grade is required.
Is 80W 90 the same as 10W 40?
The most common mistake is the belief that the viscosity of SAE 80W gear oil is much thicker than the viscosity of SAE 10W-40 motor oil. This is absolutely incorrect !
What do the numbers mean on gear oil?
The number indicates a level of the oil viscosity at a particular temperature . The higher the grade number, the higher the oil viscosity. Viscosity of gear oils designated with a number only without the letter “W” (SAE 80, SAE 90, SAE 140 etc.)
Can you use 80W 90 on a lower unit?
SHIPMATE Hi-Viscosity 80W90 PLUS Lower Unit Gear Lube is formulated specifically for marine applications, and is ideal for modern mechanical shift outboard lower units and inboard/outboard stern drives .
What is the viscosity of 80W90?
| Mobilube HD LS 80W-90 80W-90 85W-140 | Viscosity, ASTM D 445 | cSt @ 40oC 136 328 | cSt @ 100oC 14.5 25.3 | Viscosity Index, ASTM D 2270 105 97 |
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What happens if you mix gear oils?
Mineral oils, PAOs and esters may all be mixed together. Only polyglycol type synthetic oils (PG or PAG) may not be mixed with the other lubricant types. They can react together and form gum gels in the casings . Furthermore, they can sometimes be incompatible and immiscible with other polyglycols.
What is the viscosity of SAE 80?
| SAE Viscosity Grade Max. Temperature for 150 000 cP [°C] (ASTM D 2983) Min. Viscosity [mm2/s] at 100 °C (ASTM D445) | 80 — 8.02 | 80W -26 5.29 | 85 — 10.15 | 85W -12 6.46 |
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What viscosity is 80W oil?
| Gear oil SAE 80W-90 | Mineral based multigrade gear oil | Density at 60°F (15.6°C) 0.887 *103 lb/ft3 | Kinematic viscosity at 104°F (40°C) 139 cSt | Kinematic viscosity at 212°F (100°C) 15 cSt |
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Is 80w90 mineral oil?
HD Gear Oil 80W-90 is a premium mineral heavy duty gear oil manufactured with modern extreme pressure additives and premium quality base oils, meeting the requirements of API GL-5 and MT-1, as well as many other manufacturer specifications.
What is the difference between 80 90 gear oil and 85 140 gear oil?
The viscosity chart rates the 80W90 up to 95 degrees while the 85W140 is rated up to 120 degrees . Don’t want the drain and replace the oil that I just put in. Any thoughts???? Don’t worry about the ambient temperature, worry about the temperature of the gearbox that the oil is running in.
What is the best gear oil to use?
- Editor’s Choice: Red Line 75W90 GL-5 Gear Oil. Red Line Synthetic Oil is one of the top companies making synthetic lubricants for all parts of your car. ...
- Lucas Synthetic Racing Gear Oil. ...
- Royal Purple Max-GEAR. ...
- Liqui Moly Fully Synthetic Gear Oil. ...
- Mobil 1 Synthetic Gear Lube LS. ...
- 2 Comments.
What does SAE stand for in gear oil?
The Society of Automotive Engineers (SAE) has established a numerical code system for grading motor oils according to. their viscosity characteristics SAE viscosity gradings include the following from low to high viscosity: 0 5 10 15 20 25 30.
What is SAE in gear oil?
SAE Axle and Manual Transmission Gear Oil Viscosity Classification – automotive gear oil classification system developed by the Society of Automotive Engineers (SAE). The SAE 70W, 75W, 80W, and 85W viscosity grades are determined by the maximum cold temperature at which a viscosity of 150,000 cp is attained.
What does 75W80 mean?
75W80 stands for the SAE class, for which transmission oil must have characteristic properties . This classification is made by the Society of Automotive Engineers. In the case of multigrade oil, the flow properties of the oil at certain temperatures are particularly important in this context.
Is Thicker gear oil better?
Higher-viscosity gear oils offer thick films, better wear resistance and protection from corrosion , making them suited to slower gearboxes that operate under more intense pressures and loads. They also seal components better, affording longer change intervals.
Is all gear oil the same?
All gear lubricants are definitely not the same . There are differences in the additive technology used for lubricants for each specification, and just because one type of gear oil works well for one type of gear application, that doesn’t mean it will work well for all.
Can I use engine oil as gear oil?
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 .
Can I use regular gear oil in my lower unit?
So, can you use any old gear lube in your marine lower unit? If you want the best protection possible, and want your lower unit to last as long as your boat, then the answer is no . Consult your engine’s manual and look for the proper marine gear lube for your application.
What type of gear oil should I use in my outboard?
You can use any brand of lubricant that has a grade designation of API GL5 SAE 80 or 90 weight . Make sure you do not mix different oil brands or weights. into the BOTTOM drain hole.
Can you use gear oil in an outboard?
Application. Marine Gear Oil 75W-90 is designed to be used in outboard and stern drive gear cases where the manufacturer recommends a SAE 75W-90 gear case oil . It can be used where an API GL-5 SAE 80W-90 or SAE 90 is recommended.
What is 90 weight gear oil used for?
It has been designed to reduce friction & wear, perform under the highest levels of heat & stress, and is recommended for use in differentials, manual transmissions, worm gears, power dividers, supercharges, and all gear boxes that require a gear lubricant.
Is it OK to mix synthetic gear oil with regular gear oil?
So, in the end, conventional and synthetic oils are comprised of the same, compatible components – it’s just that the components in synthetics are much higher quality. While you can safely mix synthetic and conventional oils, you’re doing nothing more than diluting the performance of the synthetic oil .
Will gear oil hurt an engine?
MechanicMan Rookie. You know, gear oil really isn’t bad for your engine, just a bit thick . If it were me, I would simply put the drain plug back in, refill with engine oil, run it for 5 minutes, and then drain out the warm oil. That will probably get most of the gear oil out, and what’s left can’t hurt anything.
Can you mix ATF and gear oil?
The volume of the oils that have been mixed together will be key. 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 SAE viscosity grade?
What is SAE viscosity grade of oil?
Based on the coldest temperature the oil passes at, that oil is graded as SAE viscosity grade 0W, 5W, 10W, 15W, 20W, or 25W . The lower the viscosity grade, the lower the temperature the oil can pass.
What is SAE viscosity rating?
SAE stands for Society of Automotive Engineers. The SAE developed a numerical classification system to define the viscosity or thickness of oil . The original viscosity grades were all mono-grades, e.g. a typical engine oil was a SAE 30. This was an operating temperature viscosity.
What oil do you put in a differential?
What color is 80w90?
color-coding 890 VARI-PURPOSE Gear Lubricant SAE 80W/90 a bright red .
What is HD in oil?
HD stands for High Detergent . At least in the “normal” rating of oils. Usually used for diesel engines to help keep them clean.
What oil do you put in a manual transmission?
Manual transmission fluid, like engine oil, is generally brown to amber in color. Commonly recommended manual transmission fluid formulations include SAE 80W, 75W-90, 80W-90 and SAE 90 . In some cases, a multi-grade engine oil or automatic transmission fluid may be recommended.
What’s the difference between 80W90 and 85W140?
The viscosity chart rates the 80W90 up to 95 degrees while the 85W140 is rated up to 120 degrees .
