The description says pack of six. Is that correct?

Not a 6 pack. Only 1 Quart!!!! This is a mistake on someone's part.

i have an 08 ram that requires 4oz of limited slip additive. does this oil have ENOUGH additive blended in? how much additive is added per qt?

I have an 07 f 150. I added no friction modifier a yr ago, however, noe i have chatter. Will be adding friction modifier soon. 4oz. Thats what was recommended in a Ford blog. Hope this helps.

Does this help with Hard shifting? Anyone recommend a solution for me? Someone mention Motorcraft Friction Modifier. Would that work?

Some of it depends on the car. For example, I race a Miata and its not recommended to put non friction modified GL-5 grade gearbox oil in a Miata manual transmission. It's too slick and will make shifting difficult to impossible. Always use GL-4 grade oil for the manual transmission.Miata transmissions respond very nicely to the relatively expensive Ford Motorcraft MTF synthetic transmission oil with friction additives (FMFSMTF or XT-M5-QS). The ford MTF synthetic was developed for the difficult to shift Mustang gearboxes and contains special friction modifiers that allow synchromesh to work better than standard GL-4 fluid. This fluid is a lifetime replacement so it's cost is defrayed over time and the excellent shifting it provides. So depending on your car I would recommend the Motorcraft MTF. Its what I run in my race car. The Royal Purple I used in my Daily Driver BMW.Good luck.

how much oil do I need for a 2008 Ram 1500 4X4 rear differential

If your rear end has LSD, then it's 4.4 pints. If your rear end doesn't have LSD, then it's 4.6 pints. To make it easy, buy three bottles of this oil and keep adding until it starts flowing from the fill hole. Don't forget the gasket.

Fully operational. Shipping worldwide, on schedule.Duty & taxes paid at delivery

Help Track order

Account Cart

Fully operational. Shipping worldwide, on schedule.Duty & taxes paid at delivery

Help Track order

Account Cart

ROYAL PURPLE MAX GEAR 75W140 Quart BOTLE

ROYAL PURPLE MAX GEAR 75W140 Quart BOTLE

Product ID: 275924512

Details

Brand
Royal Purple
Item weight
907 g
Liquid volume
1 Quarts
Material
Synthetic
Package information
Bottle

🔥High-temp stability up to 75°C

⚙️75W140 synthetic viscosity

🛠️Friction modifier included

Buy anything from 5,000+ international stores. One checkout price. No surprise fees. Join 2M+ shoppers on Desertcart.

419 zł

Duties & taxes included

In stock

Sold byAmazon PolandDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to Poland.

Secure transaction

Description

⚙️ Shift smoother, drive stronger — Royal Purple Max Gear leads the pack!

TRUSTED BY ENTHUSIASTS - Top-rated by Mustang and performance car owners for reliability and superior feel.
VERSATILE HEAVY DUTY USE - Ideal for differentials, manual transmissions, and marine lower gear units—one bottle, multiple applications.
BUILT FOR HEAT RESILIENCE - Maintains performance and stability up to 75°C, perfect for demanding driving conditions.
INTEGRATED FRICTION MODIFIER - Enhances smooth shifting and reduces wear—no extra additives needed.
PRECISION SYNTHETIC VISCOSITY - Engineered 75W140 grade ensures optimal gear protection under extreme pressure.

Royal Purple Max Gear 75W140 is a premium synthetic gear oil designed for heavy-duty applications including differentials, manual transmissions, and marine lower gear units. Featuring a built-in friction modifier, it delivers exceptional wear protection and smooth shifting under high temperatures up to 75°C. Trusted by automotive enthusiasts worldwide, this 1-quart bottle offers reliable, long-lasting performance that meets or exceeds manufacturer specifications.

Specifications

ASIN	B000J15THO
Best Sellers Rank	#36,321 in Automotive ( See Top 100 in Automotive ) #448 in Automotive Oils
Brand Name	Royal Purple
Container Type	Bottle
Customer Reviews	4.7 4.7 out of 5 stars (921)
Global Trade Identification Number	00641330013010
Included Components	Auto part, Automotive Accessories, Replacement and Performance parts
Item Form	Oil
Item Type Name	Max Gear 75W140 Quart Botle
Item Weight	907 g
Liquid Volume	1 Quarts
Lower Temperature Rating	75 Degrees Celsius
Manufacturer	Royal Purple
Material	Synthetic
Model Number	ROY01301
Number of Items	1
Part Interchange Info	01301
Part Number	1301
Recommended Uses For Product	Differentials, Manual Transmissions, Marine Engine Lower Gear Units
Specific Uses For Product	Machine and Vehicle Lubrication
UPC	641330013010
Unit Count	32 Fluid Ounces
Upper Temperature Rating	1 Kelvin
Viscosity	one bottle 75-140w

Common Questions

Are the products genuine and authentic?+

Yes, all products are sourced directly from authorized retailers in the US, UK, UAE and India. We maintain strict quality control processes and verify each product before shipping. All items come with applicable manufacturer warranties and are covered by our standard return policy.

How long does delivery take and is it reliable?+

Delivery times vary by destination country, typically ranging from 3-9 business days. Each order is fully trackable through our system. We handle all customs clearance and use reliable courier partners for last-mile delivery. You'll receive regular updates about your order status via email and our app.

What is Desertcart? Is it safe to order from?+

Desertcart is an international e-commerce platform operating since 2014. We securely process thousands of orders globally each day. Every product goes through our quality verification process before delivery, and we provide end-to-end order tracking, 24/7 customer support, and a comprehensive returns policy to ensure a safe shopping experience.

How is product pricing calculated?+

Our prices include the product cost, international shipping, import duties, customs clearance, and local delivery charges. We handle all customs and import procedures, ensuring there are no hidden fees upon delivery. PRO members receive additional benefits including free shipping.

Trustpilot

TrustScore 4.5 | 7,300+ reviews

Zainab N.

Fantastic and great service. Shipping was faster than expected.

1 week ago

Reema J.

Perfect platform for hard-to-find items. Delivery was prompt.

1 month ago

View all Trustpilot reviews

Shop Global, Save with Desertcart

Value for Money

Competitive prices on a vast range of products

Shop Globally

Serving millions of shoppers across more than 100 countries

Enhanced Protection

Trusted payment options loved by worldwide shoppers

Customer Assurance

Trusted payment options loved by worldwide shoppers.

Desertcart App

Shop on the go, anytime, anywhere.