Gear Oils
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Red Line 75W85 MT-85 Gear Oil - Quart
$329.83
Recommended for Nissan 350Z and 370Z (also most Maxima, Altima & Sentra), Mitsubishi Evolution, Hyundai, Kia and Quaife synchro manual trans applications
Red Line MT-90 75W90 Gear Oil - 5 Gallon
$500.78
Popular in Nissan, Mazda, Mitsubishi, VW/Audi, Lotus Elise/Exige, Toyota, Mendeola transmissions and Atlas transfer cases for Off Road
Red Line MTL 75W80 GL-4 - Quart
$329.07
Popular for BMW, Honda/Acura, Ford Focus, late-model Mini Cooper, Land Rover/Range Rover LT77S, Mitsubishi, Dodge & Jeep NV1500, NV3500, NV3550 and NV5600 truck transmissions
Red Line 75W85 GL-5 Gear Oil - Quart
$335.83
This product is not designed for use in most manual transmissions or transaxles with synchronizers, as extreme slipperiness may cause shifting problems
Red Line Non-Slip CVT - Quart
$295.82
Synthetic base stocks offer improved shear characteristics, improved thermal stability and extended drain intervals (up to 30,000 miles, follow manufacturers specifications)
Red Line D4 ATF - Gallon
$310.68
Popular applications: Toyota Type T-III and T-IV, Honda ATF-Z1, Nissan Matic D, J & K, Diamond SP-II, SP-III, Mazda ATF M-V, most BMW and Audi/VW automatic transmissions
LIQUI MOLY 1L Fully Synthetic Hypoid Gear Oil (GL4/5) 75W90
$190.43
Fully synthetic hypoid gear oil, ideally suited for high performance applications even under extreme loads and operating conditions. Ensures maximum wear protection and promotes precise functionality over a wide temperature...
LIQUI MOLY 1L Dual Clutch Transmission Oil 8100
$172.43
Fully synthetic gear oil, developed specifically to meet a variety of OE manufacturers Dual Clutch Transmission (DCT) specifications. Latest additive technology ensures superior clutch control, best shift performance and outstanding...
LIQUI MOLY 1L Top Tec ATF 1800
$112.41
Fully synthetic leading edge, high-performance automatic transmission fluid. Developed to meet the severe requirements of modern multi-speed transmissions designed with 6 or more gears. The use of modern additive technology...
LIQUI MOLY 1L High Performance Gear Oil (GL4+) SAE 75W90
$148.42
Fully synthetic high-performance transmission fluid. Offers high shear stability combined with correct friction behavior and excellent wear protection. Outstanding resistance to viscosity breakdown provides superior shift performance in all operating...
Motul 20L Trans ATF VI Transmission Fluid 100% Synthetic
100% Synthetic High performance low viscosity lubricant specially engineered for modern automatic transmission (manual mode, sequential mode, electronically controlled ?) with or without slip lockup clutch requiring a DEXRON VI...
LIQUI MOLY 20L Top Tec ATF 1900
$496.26
Fully synthetic, low viscosity automatic transmission fluid, developed to meet the strict requirements of 2nd generation Mercedes-Benz 7-speed automatic transmissions (type 722.9). Improved formula for sustained transmission life and maximum...
Red Line Racing ATF - Quart
$254.05
Enhanced extreme-pressure additives provide 5-times better film strength than petroleum ATFs
Red Line 75W110 GL-5 Gear Oil - Quart
$334.63
This product is not designed for use in most manual transmissions or transaxles, since the extreme slipperiness may cause synchronizer mesh issues that lead to shifting problems
Red Line V-Twin Primary Oil - Quart
$284.66
For 1984-to-present V-Twin American motorcycle engines, including Milwaukee-Eight, Evolution, Twin Cam and aftermarket engines of similar design
Red Line C+ATF - Quart
$248.06
Provides 30% greater operating viscosity and 1/3 the evaporation of Chrysler-style petroleum ATFs
Twin Power 85W140 Semi-Synthetic Transmission Lube - 6 Ga...
$335.64
Buy six 6-gallon Bag-In-Box, P/N 539026, 539027, 539028 or 539029 to receive a free rack display and shop dispensers. This program is perfect for service-oriented shops. It offers a unique...
Twin Power Primary Lube - 6 Gallon Bag-In-Box
$305.65
Buy six 6-gallon Bag-In-Box, P/N 539026, 539027, 539028 or 539029 to receive a free rack display and shop dispensers. This program is perfect for service-oriented shops. It offers a unique...
Twin Power 80W90 Transmission Lube - Quart
$205.15
Lube and protect your Replaces H-D® Gearbox with Twin Power™ . Specially developed for Harley-Davidson® custom models with separate primary and transmission cases, our transmission gear lube offers you superior...
Twin Power 85W140 Semi-Synthetic Transmission Lube - Quart
$208.15
Twin Power™ Semi-Synthetic 85W140 provides smooth shifting. Our semi-synthetic base formula means ultra-high films strength and shear stability that resists viscosity breakdown and increases service life. It promotes smooth, quiet...
Twin Power Primary Lube - Quart
$177.14
Twin Power™ Primary Lube Quart delivers superior chaincase lubrication, reducing wear and ensuring smooth shifting for Harley primaries in all riding conditions.
Twin Power Sportster Transmission Lube - Quart
$178.14
Twin Power™ Sportster Transmission Lube, specially formulated for 71 and later XL models for smooth shifting and clutch action. This SAE 80W90 oil has been specially formulated for use in...
Red Line LightWeight ShockProof Gear Oil - Gallon
$428.36
Film thickness greater than an SAE 75W140, yet low fluid friction like 80W gear oil or 30W motor oil
Red Line Heavy ShockProof Gear Oil - Quart
$335.99
Many performance racing applications like Sprint, Midget, Dirt Late Model and Quick Change Differentials, Detroit Lockers and spools, NHRA Top Fuel and Funny Car rear ends
Red Line 75W90 Gear Oil - Quart
$335.83
Ester/PAO base stocks and friction modifiers provide additional slipperiness to lower operating temperatures by reducing the sliding friction in hypoid gears
Red Line MTLV 70W75 GL-4 Gear Oil - Gallon
$418.82
Recommended for GL-1, GL-3 and GL-4 applications as well as where most special synchromesh fluids are specified
Red Line MTLV 70W75 GL-4 Gear Oil - Quart
$329.07
Recommended for GL-1, GL-3 and GL-4 applications as well as where most special synchromesh fluids are specified
Red Line MT-90 75W90 Gear Oil - Gallon
$419.44
Popular in Nissan, Mazda, Mitsubishi, VW/Audi, Lotus Elise/Exige, Toyota, Mendeola transmissions and Atlas transfer cases for Off Road
Red Line MTL 75W80 GL-4 Gear Oil - Gallon
$418.82
Popular for BMW, Honda/Acura, Ford Focus, late-model Mini Cooper, Land Rover/Range Rover LT77S, Mitsubishi, Dodge & Jeep NV1500, NV3500, NV3550 and NV5600 truck transmissions
Red Line DCTF Dual Clutch Transmission Fluid - Quart
$346.59
Designed to provide extreme protection in many wet- and dry-style dual clutch transmissions
Red Line C+ATF - Gallon
$310.91
Provides 30% greater operating viscosity and 1/3 the evaporation of Chrysler-style petroleum ATFs
Royal Purple Synchromax Synthetic Manual Transmission Flu...
Royal Purple Synchromax is recommended for manual transmissions that specify an automatic transmission fluid or other light-viscosity oil. It is also ideal for transfer cases and 2-cycle motorcycle gear boxes...
Royal Purple Max ATF Automatic Transmission Fluid - 1 Quart
Royal Purple Max ATF is a full synthetic, multi-vehicle, high performance, long life, automatic transmission fluid. Max ATF meets the viscosity and performance requirements of late model automatic transmission fluid...
Royal Purple Max Gear Synthetic 75W140 Gear Oil - 1 Quart
Max Gear is a high performance automotive gear oil designed to provide maximum protection to heavily loaded gears while increasing power throughput through the drive train. Max Gear virtually eliminates...
Royal Purple Max Gear Synthetic 75W90 Gear Oil - 1 Quart
Max Gear is a high performance automotive gear oil designed to provide maximum protection to heavily loaded gears while increasing power throughput through the drive train. Max Gear virtually eliminates...
Red Line LightWeight ShockProof Gear Oil - Quart
$335.99
Film thickness greater than an SAE 75W140, yet low fluid friction like 80W gear oil or 30W motor oil
Red Line 75W90NS Gear Oil - Quart
$329.83
Helps with lock-up on weak limited-slip differentials-compatible with Red Line Limited Slip Friction Modifier for tuning slippage
Red Line Heavy ShockProof Gear Oil - Gallon
$429.16
Many performance racing applications like Sprint, Midget, Dirt Late Model and Quick Change Differentials, Detroit Lockers and spools, NHRA Top Fuel and Funny Car rear ends
Red Line 75W140NS Gear Oil - Quart
$329.83
Also used in clutch-type limited slip differentials in racing for maximum lock up-some users add Limited Slip Friction Modifier in small doses to customize slippage
Red Line MT-85 75W85 GL-4 Gear Oil - Gallon
$419.44
Recommended for Nissan 350Z and 370Z (also most Maxima, Altima & Sentra), Mitsubishi Evolution, Hyundai, Kia and Quaife synchro manual trans applications
Red Line MT-90 75W90 Gear Oil - Quart
$329.83
Popular in Nissan, Mazda, Mitsubishi, VW/Audi, Lotus Elise/Exige, Toyota, Mendeola transmissions and Atlas transfer cases for Off Road
Red Line 75W85 GL-5 Gear Oil - 5 Gallon
$510.12
This product is not designed for use in most manual transmissions or transaxles with synchronizers, as extreme slipperiness may cause shifting problems
Red Line 75W85 GL-5 Gear Oil - Gallon
$419.84
This product is not designed for use in most manual transmissions or transaxles with synchronizers, as extreme slipperiness may cause shifting problems
Red Line V-Twin Transmission Oil - Quart
$321.59
This product dampens transmission noise (reducing the notorious shifting clunk found in these gearboxes), dramatically reduces temperature, provides thicker oil films between gear teeth and resists throw-off
Red Line 80W Motorcycle Gear Oil w/Shockproof - Quart
$309.58
Popular for 65cc, 85cc, 125cc and 250cc two stroke motocross transmissions, as well as shifter kart gearboxes and CRF transmission cases
Red Line D6 ATF - Quart
$248.65
Designed to satisfy Dexron-VI®, Mercon®SP, Mercon®LV, Honda DW-1, Toyota WS, Mercedes Benz NAG-2, ZF-LG 6, 6+ and 8 fluids
Red Line D4 ATF - Quart
$248.65
Popular applications: Toyota Type T-III and T-IV, Honda ATF-Z1, Nissan Matic D, J & K, Diamond SP-II, SP-III, Mazda ATF M-V, most BMW and Audi/VW automatic transmissions
Red Line Lightweight Racing ATF - Gallon
$329.20
Superior consistency and wear protection for Bracket and Heads-Up drag racing transmissions like Powerglide and Turbo 400
Explore our full range of Gear Oils at Bull Strap. We stock a wide variety of gear oils from the brands you trust, all built to deliver reliable performance and long-lasting durability. No matter your application, you'll find the right fit for your vehicle right here.
Your drivetrain transfers power from the engine to the wheels — it needs to be strong, precise, and reliable. Our gear oils are made by industry-leading manufacturers and designed to handle everything from stock applications to high-performance builds. Keep your vehicle shifting smoothly and putting power to the ground.
Browse our gear oils collection today and find exactly what your vehicle needs. With competitive pricing, fast shipping, and expert support, Bull Strap makes it easy to get the right parts, right when you need them.