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Palmerston North

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View Scheduled Maintenance

Your owner's manual should give you the recommended intervals which could be anywhere from 24,000 klms to 160,000 klms. Most transmission experts recommend changing the fluid and filter every 40,000 klms.

Few transmissions have drain plugs to drain the old fluid. In order to get the fluid out, the...

Redline Oils & Lubricants

These are just some of the Redline Oils Range that we use and sell here at Geartech. if you are interested in having us service your vehicle with these oils, or would like to purchase any of these oils please feel free to contact us at Geartech.


Heavy ShockProof®

Film thickness greater than an SAE 75W250, yet low fluid friction like 75W90 For heavily-loaded racing differentials and transmissions, problem gearboxes Many performance racing applications like Sprint/Midget/Dirt Late Model Differentials, Detroit Lockers and spools, NHRA Top Fuel and Funny Car rear ends Not recommended for most synchro applications due to the product's extreme slipperiness.


Lightweight ShockProof®

Film thickness greater than an SAE 75W140, yet low fluid friction like 80W gear oil or 30W motor oil Excellent low-temp flow, improved cold shifting For racing differentials under moderate loads Popular in racing transmissions like Hewland and other Road Racing dog-ring boxes, Bert and Brinn for Stock Cars, G-Force, and Liberty clutchless for Drag Racing


80W140 GL-5 Gear Oil

Recommended for API GL-5, GL-6, MT-1, MIL-L-2105E, and SAE J2360 Contains additional friction modifiers for suitablity with clutch-type limited slip differentials - for most LSDs, no additional friction modifiers are required This product is not designed for use in manual transmission or transaxles with synchronizers, as its slipperiness may lead to shifting problems Popular in stock car racing differentials and transmissions


MTL 70W80 GL-4 Gear Oil

Popular for BMW, Honda and Acura, Ford Focus, late-model Mini Cooper, Land Rover/Range Rover LT77S, Dodge & Jeep NV1500, NV3500 and NV5600 truck transmissions Popular replacement for and improvement over GM Synchromesh® (#12345349) and Auto-Trak II® (#12378508) and Chrysler spec MS-9224 Safe for brass synchros, as it lacks the reactive sulfurs found in most GL-5 oils that cause damage Offers quicker shifts, perfect synchronizer coefficient of friction Eliminates notchy shifting, even when cold High performance gear protection and longer synchro life Satisifies the gear oil viscosity requirements of 70W, 75W, 80W, and motor oil viscosities of SAE 30, 10W30, and 5W30 Recommended for GL-1, GL-3, and GL-4 applications as well as where most special synchromesh fluids are specified

ABOUT RED LINE GEAR OIL FOR MANUAL TRANSMISSIONS

Appropriate coefficient of friction for most manual transmission synchronizers (other's synthetic gear oils are often too slippery for proper synchro engagement) Red Line offers lubricants to pinpoint nearly every transmission application MTL, MT-85 & MT-90 are not for use in differentials with hypoid gears Excellent gear and synchro protection, balanced slipperiness for easier shifting in cold climates Excellent for high- and low-mile transmissions Compatible with petroleums and other synthetics


Limited Slip Friction Modifier

Compatible with both petroleum and synthetic gear oils Reduces break-in temps as much as 50°F Add 1oz at a time to clutch-type limited slip or posi-traction units to eliminate chatter

MORE TECHNICAL INFORMATION

Limited-slip or Positraction units use plates or clutches to provide the proper amount of lock-up to the differential. Slippery lubricants are required to prevent chatter, but too much slipperiness causes excess wheel spin, reducing traction. For perfect traction, use Red Line 75W90NS and add the Red Line Limited-Slip Differential Friction-Modifier / Break-In Additive until the chatter disappears. Satisfies performance requirements of GM 1052358, Ford M2C118-A, 19B546-MA, Chrysler 4318060 and most imports. Recommended Dosage: Use 4% for prevention of limited slip chatter in broken-in units (typical one 4 oz. bottle) or 4 to 8% for the break-in of new differentials. Red Line Limited-Slip Differential Friction-Modifier / Break-In Additive will significantly reduce the friction during break-in of differentials. High temperatures encountered in break-in can destroy the hardening of the gear teeth causing rapid wear of the softened gears. This additive can reduce the break-in temperatures by as much as 50°F, improving break-in conditions. Compatible with petroleum or synthetic gear oils. Red Line Gear Oils already contain this additive (except the NS). In non limited-slip racing differentials and quick change units using the Red Line ShockProof Gear Oils an additional 3 to 6% Red Line Limited-Slip Differential Friction-Modifier / Break-In Additive is recommended.


Geartech Guarantee

All of Geartech's work is done to the highest standard and guaranteed.

At Geartech we try to provide the best possible service and a high standard of workmanship accross all of our automotive services. All of our work is guaranteed and you can rest assure that your job will be done right and on time the first time.