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| ATV: | No |
| Container Size: | 1 qt |
| Container Type: | Bottle |
| Conventional: | No |
| Detergent or Non-Detergent: | Detergent |
| Diesel Approved: | No |
| High Mileage: | No |
| Motorcycle: | No |
| Race Only: | No |
| Synthetic Blend: | No |
| Synthetic: | Yes |
| Viscosity Index: | 75W90 |
REVIEW SNAPSHOT®
by PowerReviewsPros
Cons
Best Uses
Most Liked Positive Review
good product
Doing maintain on my 06 Toyota tacoma, T-case, Manual transmission and front and rear axles, FYI you still need to buy the LS additve it's says it has it in the fluid, after ...Read complete review
Doing maintain on my 06 Toyota tacoma, T-case, Manual transmission and front and rear axles, FYI you still need to buy the LS additve it's says it has it in the fluid, after I changed the fuild the chattering started, so when and got so diff additive and all good.
VS
Most Liked Negative Review
Waste of money- Tundra LS
Changed to Mobil LS1 in my 2006 Tundra 4WD Limited slip (LS) about 8 months ago. After about 3-5k miles I started getting a chattering noise when turning sharp. Thought it was ...Read complete review
Changed to Mobil LS1 in my 2006 Tundra 4WD Limited slip (LS) about 8 months ago. After about 3-5k miles I started getting a chattering noise when turning sharp. Thought it was the front end, could not find anything wrong. Transmission maybe??? So I had the trans flushed at the Toyo dealer.(120k miles on truck). Could not be my rearend...I have Mobil 1. Changed over to Lucus 80W-90 standard gear oil with 1/3 of a bottle of the KW LS additive. My truck drives perfect again and turns are very smooth. Can't believe it took me 20k miles to figure out this product is all hype. The oil was still very clear though when I drained it. Only positive thing I can think of?
REVIEWS
Reviewed by 29 customers
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Pros
Cons
Best Uses
Comments about Mobil1 Synthetic Gear Lubricant LS 75W-90 (1 qt.):
Great product provide added reliability to an early Mini Cooper midland transmission.
Pros
Cons
Best Uses
Comments about Mobil1 Synthetic Gear Lubricant LS 75W-90 (1 qt.):
I use this in my toyota FJ and have had no issues; although on a product like this, i'm not sure how you might have an issue.
Pros
Cons
Best Uses
Comments about Mobil1 Synthetic Gear Lubricant LS 75W-90 (1 qt.):
2006 ford f-350 dana/spicer 80
Pros
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Best Uses
Comments about Mobil1 Synthetic Gear Lubricant LS 75W-90 (1 qt.):
Mobil1 Synthetic Gear Lubricant LS 75W-90 (1 qt.) offers superior differential gear and transmission lubrication. I had my 1998 Toyota E153 manual transmission completely rebuilt 75,000 miles ago and I've used Mobil1 Synthetic Gear Lubricant LS 75W-90 gear oil ever since. Happiness is having silky smooth shifting and the occasional power shifting street induced incidences without experiencing any transmission issues or problems.
Pros
Cons
Best Uses
Comments about Mobil1 Synthetic Gear Lubricant LS 75W-90 (1 qt.):
Good product at a great price
Pros
Cons
Best Uses
Comments about Mobil1 Synthetic Gear Lubricant LS 75W-90 (1 qt.):
You would have to buy a friction modifier to use it in a limited slip differential. Royal Purple is far more expensive but at least you don't have to go to a dealer to get the modifier.
Pros
Cons
Best Uses
Comments about Mobil1 Synthetic Gear Lubricant LS 75W-90 (1 qt.):
Used in manual transmission. Improved shift quality. Plan on doing rear as well.
Pros
Cons
Best Uses
Comments about Mobil1 Synthetic Gear Lubricant LS 75W-90 (1 qt.):
this lube is universally rated very high for use in Harley transmissions. Works great. keeps transmission quiet
Pros
Cons
Best Uses
Comments about Mobil1 Synthetic Gear Lubricant LS 75W-90 (1 qt.):
Used on my Toyota Land Cruiser 1991 Transfer case, great product
Pros
Cons
Best Uses
Comments about Mobil1 Synthetic Gear Lubricant LS 75W-90 (1 qt.):
Only downside is its never on discount
Do you have questions about this product?(earn points for answers!)
Ask a question, get answers from real customers and in-house experts. Or contact Customer Care by email or call 1-877-238-2623.
Q:
I have an 08 Harley Road King. Can I use this in the transmission &/or the primary?1 answer
CUSTOMER CARE
A:
Sorry, this Mobil1 Synthetic Gear Lubricant LS 75W-90 (1 qt.) - part# 104361/98W573 is not compatible for your Harley Davidson Road King. I would suggest you to use the transmission fluid which is recommended in your owner's manual. For any further assistance, please feel free to call us at: 1-877-238-2623 or visit the nearest Advance Auto Parts store and one of our Parts Pros will gladly assist you with any questions or concerns you may have.Q:
I have a 2003 Sentra Spec-V. The Nissan service manual specifies 75W-85 GL-4 oil in the transmission. I have read elsewhere that GL-5 oils can potentially be harmful to the transmission if the manufacturer doesn't specify it for a GL-5 oil, but GL-4 seems to be possible to find on your site anywhere near the required viscosity. Will this product work in my vehicle, and if not, what will?1 answer
CUSTOMER CARE
A:
Sorry, this Mobil1 Synthetic Gear Lubricant LS 75W-90 (1 qt.) - part# 98W573 is not compatible for your 2003 Nissan Sentra Spec-V. Right now we are unable to locate the exact gear lubricant with API GL-4 specification for your vehicle online. However, if you could please visit your nearest Advance Auto store or call us directly at 1-877-ADVANCE (238-2623) one of our representatives there would be more than happy to assist you.Q:
can I use this in my drive shaft gear box of a 2006 yamaha 650 vstar and whats the different s between GL-4 and GL-51 answer
CUSTOMER CARE
A:
Sorry, this Mobil1 Synthetic Gear Lubricant LS 75W-90 (1 qt.) - part# 98W573 is not compatible with your 2006 Yamaha V-Star 650. GL-4 and GL-5 are standards set by the American Petroleum Institute for gear oils. GL-4 are intended for axles with spiral bevel and hypoid gears operating under moderate to severe conditions of speeds and loads. They are also suitable for sychronized manual transmissions when MT-1 gear oils are NOT recommended. GL-4 should be used in limited-slip differentials. The GL-4 generally indicates "Limited Slip" properties in the gear oil. GL-5 is indicated for high-speed/shock loads and low-speed/high-torque conditions. GL-5 also has multi-purpose or mild EP (extreme) properties too. GL-5 is often seen with the MT-1 designation too. For any further assistance, please visit your nearest Advance Auto store or call us directly at 1-877-ADVANCE (238-2623) and one of our representatives there would be more than happy to assist you.Q:
I have a 1997 Honda Goldwing can I use this product for the gear oil1 answer
CUSTOMER CARE
A:
Yes, the Mobil1 Synthetic Gear Lubricant LS 75W-90 (1 qt.) (Part No. 98W573) is safe to use in your 1997 Honda Goldwing. For any further assistance please feel free to call us at: 1-877-238-2623 or visit the nearest Advance Auto store and one of our representatives will gladly assist you with any questions or concerns you may have.Q:
can I use this in a 1999 ford ranger rear diff1 answer
CUSTOMER CARE
A:
Yes, you can use this Mobil1 Synthetic Gear Lubricant LS 75W-90 (1 qt.) in rear differential of a 1999 Ford Ranger.Q:
I have a 91 mr2 turbo with e153 transaxle. No limited slip differential. Will the LS component of this oil effect the performance of my vehicle.1 answer
CUSTOMER CARE
A:
This product meets or exceed the requirements of API service MT-1/GL-5 EP gear oil service classification and is recommended by ExxonMobil for use in applications requiring the MIL-PRF-2105E specification. So it is compatible with your vehicle and will not corrode the already worn syncros.Q:
I have a 99 toyota 4runner v6 4x4. I noticed this says ls. I want to put this in the transfer case and front diff. My 4runner does not have ls. Can I still use this1 answer
CUSTOMER CARE
A:
Yes, you can use this in your vehicle.Q:
What does the W stand for and is it important?3 answers
A:
The W is for WeightCUSTOMER CARE
A:
It represents the grade of the oil.A:
Multi weight lubricants have special additives that change the viscosity with temperature. 75W-90 means it acts like a 75 weight (relatively thinner) oil in cold climates which allows less cold operation friction and resistance to flow. As the oil warms up the additive package acts to prevent the normal thinning process, hence it acts like a true 90 weight oil when hot. Straight 90W gear oil is quite thick during cold weather, which not only causes increased drag but also it resists flow so it doesn't lubricate as well. So the W is very important.Q:
Can I use this in a 2004 Silverado 2500 Quadrasteer? I read so many different things. Some say that the quadstreer takes a specific differential oil for the read. Is this true? My truck has 66,000 & I want to change rear fluid.2 answers
CUSTOMER CARE
A:
I would suggest taking your vehicle to a certified mechanic for a proper diagnosis before buying and having parts installed that may not (solve/be) the problem.CUSTOMER CARE
A:
This Mobil1 Synthetic Gear Lubricant LS 75W-90 (1 qt.) with part# 98W573 is exactly matching your vehicle.Q:
Can Mobil 1 LS75w-90 be used as a gear lube in a 2001 Harley FLH transmission?1 answer
A:
I worked for 2 H-D dealers over a 6 year period. It is too thick for your Harley Davidson transmission. Stick with H-D Tranmission Fluid or H-D Synthetic Fluid. They work the best. Do not use gear oil.