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Performance Engine Oils
RED LINE High Performance 75W-85 GL-5 Fully Synthetic Gear Oil

RED LINE High Performance 75W-85 GL-5 Fully Synthetic Gear Oil


RED LINE 75w-85 gear oil - 1 US Quart (0.946 Litre)

1 US Quart (0.946 Litre)


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  • Description
  • Benefits
  • Specifications
  • Cross References
  • Shipping Explained

RED LINE High Performance 75W-85 GL-5 Fully Synthetic Gear Oil

Known formerly as LightWeight Gear Oil

RED LINE HIGH-PERFORMANCE GEAR OIL is a fully-synthetic formula blended with ester base stocks for shear stability, less gear noise and more consistent viscosity in warm and cold temperatures. Extreme pressure (EP) additives allow for use with hypoid gears and friction modifiers are included for use with limited-slip differentials. Not for use in most manual transmissions with synchronizers, as slipperiness may cause gear clash.

These products contain the extreme pressure additives necessary for ultimate protection road cars and racing vehicles, as well as friction modifiers (except NS) for proper limited-slip operation

Popular in many late model BMW, Dodge, Ford, GM, Jeep, Lexus, Mercedes-Benz, Ram, Toyota

Applications include differential oil, final drive oil, gear oil and transfer case fluid

Contains additional friction modifiers for suitability with clutch-type limited slip differentials - for most LSDs, no additional friction modifiers are required

This product is not designed for use in most manual transmissions or transaxles with synchronizers, as extreme slipperiness may cause shifting problems

Also popular in many Formula racing transaxles, including Hewland LD-200 and FTR sequential

PDF Downloads:

Download the Technical PDFDownload the Safety PDF


  • Fully-synthetic formulas created from polyol ester base stocks, offer excellent lubrication under extreme conditions
  • Ester base stocks and friction modifiers (except NS) provide additional slipperiness to lower operating temperatures by reducing the sliding friction in hypoid gears
  • High viscosity-index (VI) to provide relatively constant viscosity and film thickness with varying temperature change
  • Superior shear stability and reduced oxidation compared to other synthetics and conventional gear oils
  • Exceed API GL-5 specifications
  • Engineered to provide the highest degree of protection and improvement of differential efficiency for better mileage, longer drain intervals, and less wear


  • API GL-5 & MT-1
  • MIL-L2105E
  • SAE J2360 
  • Satisfies the gear oil viscosity requirements of SAE 75W80, 85W and SAE 10W30 motor oil

Cross Reference:

  • AUDI
  • BMW/MINI 83 12 0 445 838, 83 22 2 295 532, 83 22 2 413 511, 83 22 2 413 512
  • Castrol, BOT 448
  • Hypoid Axel OilG1/G2/G3
  • JEEP 05136035AA, 68083381AA
  • FIAT
  • FORD
  • WSS-M2C942-A
  • XY-75W85-QL
  • GM, 88862826, 92184900
  • SAF Carbon Mod
  • GMC
  • HONDA/ACURA 08200-9014A
  • Hypoid Gear Oil HGO-1
  • JEEP
  • KIA
  • MAZDA K020-01-SG1
  • MERCEDS-BENZ 235.15/235.7/235.74 A, 001989 59 03, A 0012 989 33 03
  • MG
  • KDL38-75801P
  • TOYOTA/LEXUS 08885-02506, 08885-02606, 08885-81060
  • VOLVO G 052 513
  • VW/AUDI G 052 513


SHIPPING IS FREE* for orders of £75 and over , regardless of the weight of your order.
We've tried to keep all other shipping costs as low as we can.

Carriage starts at just £0.95 (inc VAT) for small items, with our most common courier rate set at £5.99 for orders of 5kg (enough for 5 litres of oil).

  • *Free shipping is available for UK Royal Mail, UPS Access Point™ (click & collect) and standard UK courier services (not express / priority / islands).
  • Courier surcharges mean we are unable to offer free "to the door" courier shipping from us in Cornwall up to Highlands / Grampian in Scotland - and because we send a lot of liquids, not every courier option is available to us. UPS Access Point™ (click & collect) is available as a free shipping option across Scotland, Wales and England, wherever there is a UPS Access Point™ Location.
  • Carriage charges are based on weight - please see our table of carriage costs for full details (although adding an item to your cart and viewing the calculated carriage is often easier!).
  • Priority shipping is also available.

How long will it take to get my order?

We give an estimate of delivery dates as you shop and in your basket. The vast majority of items are held in stock and dispatched from our UK warehouse and we'll do all we can to get your order to you as quickly as possible.

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