Royal Purple Max-Gear Gear Oil & Friction Modifier Kit - 75w90 by Royal Purple

Royal Purple Max-Gear Gear Oil & Friction Modifier Kit 75w90

Royal Purple

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Picture of Royal Purple 75w90 Max-Gear Gear Oil & Friction Modifier Kit

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Max-Gear makes gears run smoother, quieter, cooler and longer without overhauls.

Item #RP-12300K

Sale Price: $47.49

Everyday Low Price: $49.99
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Benefits

Reduces Temperatures
Smoother Operation

Features

Virtually Eliminates Gear & Bearing Wear
Highest Quality Synthetic Oils

What's in the Box

(2) Quarts 75w90 Gear Oil
(2) Caps w/ Nozzle
(1) Bottle Ford racing Friction Modifier

Product Description

Whether you are installing new rear end gears, changing differential gaskets, or replacing your differential fluid, this Royal Purple Max Gear oil & friction modifier kit is the perfect solution. Featuring a pair of 1 quart bottles of 75w90 Royal Purple gear oil and 1 4oz bottle of Friction Modifier, this kit has everything you need to refill your differential.

Formulated to improve the efficiency of rear end assemblies and manual transmissions. Virtually eliminates both gear and bearing wear. API GL-4 / GL-5 Certified.

Max-Gear is an ultra-tough automotive gear oil. It’s designed to maximize power and provide unsurpassed protection to heavily loaded gears. It makes gears run smoother, quieter, cooler and longer without overhauls.

Max-Gear outperforms other gear oils because it combines the highest quality synthetic oils with Royal Purple’s proprietary Synslide additive technology.

Max-Gear is recommended for use in truck, motor home / RV, and automotive front or rear differentials, manual transmissions, and lower gear units of marine engines that specify use of an API GL-5 or GL-4 fluid. All viscosities of Max-Gear are formulated with hypoid friction modifiers necessary for use in clutch or cone type differentials. No additional additives are necessary.

**Although the Royal Purple gear oil contains friction modifier, we highly recommend including the Ford Racing friction modifier along with the gear oil when refilling your rear end.**

Due to Hazmat regulations, lubricants/fluids cannot be shipped to APO/FPO addresses.

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Product Reviews (8)

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4.9

out of 5 stars

8 reviews

5 stars 7

4 stars 1

3 stars 0

2 stars 0

1 star 0

100%

OF CUSTOMERS

RECOMMEND THIS PRODUCT
8 of 8 REVIEWS

RECOMMEND THIS PRODUCT
8 of 8 REVIEWS

5 Stars

No noise!

By Bill E. on 6/30/2014

Needed to replace fluid when swapping to FR differential cover. I like quiet when cruising and wasn't sure if I should take a chance on 75w90 vs factory recommended 140 gear oil. Happy to say I noticed no extra noise! I also bought an extra quart of RP since capacity listed is 5 pints (80oz) and the kit is 68oz. Oddly only could squeeze an extra 6 oz in?

Yes, I would recommend this item to a friend!

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4 Stars

Great gear oil.

By Keith R. on 9/6/2016

Great gear oil for and it's very convenient to get the combo pack. One thing, is make sure this is the weight you want or need. Some people recommend a higher weight (140). Also, there are no instructions on how much Friction Modifier to add, which can be confusing, since Royal Purple says it has modifier added already. I added the whole bottle and so far, so good. Still a bit annoying not having a definitive instruction on that.

Yes, I would recommend this item to a friend!

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5 Stars

Couldn't be better!

By Max R. on 4/14/2014

I could not have asked for a better product! I paired this with my entire rear end rebuild. It is silky smooth. I recommend the Ford Racing friction modifier over the standard fluid that comes with the differential.

Yes, I would recommend this item to a friend!

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5 Stars

Royal Purple> Great Choice

By Josh C. on 4/13/2014

I purchased this Kit along with my FRPP 3.73's and now I feel comfortable that my rear end will last as long as I need it to.

Yes, I would recommend this item to a friend!

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5 Stars

Smooth !!!!

By joseph p. on 9/2/2017

Really makes a big difference smooth feeling driving down the road... royal purple is the best !!!

Yes, I would recommend this item to a friend!

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RP FTW

By Darrell A. on 2/5/2016

RP is second to nothing when it comes to fluids, definite upgrade over the factory garbage.

Yes, I would recommend this item to a friend!

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Slick deal!

By Eric E. on 4/24/2014

I'ved used this kit several times now and it is the best gear lube setup I know of!

Yes, I would recommend this item to a friend!

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Only Royal Purple for my foxbod

By William R. on 5/28/2014

I only use the best fluids on my baby and nothing compares to RP.

Yes, I would recommend this item to a friend!

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About This Brand

Royal Purple - Unleash The Power
The most frequent comment from customers is how they can feel the difference in their vehicles after switching to Royal Purple. For instance, Royal Purple Motor Oil typically improves horsepower and torque up to 3%. It also reduces fuel consumption by as much as 5% and typically reduces emissions 20% or more. Performance gains will vary depending on the type of vehicle, its condition, and the way it's driven. Shop Latemodel Restoration to get all of the Royal Purple oil and lubricants you need!

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