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Oils, Fluids and Sealer› Oils, Fluids and Additives
Red Line
Red Line 75W140 Gear Oil - Quart
SKU: R00B 57914
Overview
Red Line gear oils are formulated with a high viscosity-index for consistent performance across varying temperatures. They offer superior shear stability and reduced oxidation compared to conventional gear oils. While recommended for API GL-5, GL-6, MT-1, MIL-L-2105E, and SAE J2360 applications, this particular formula is not designed for most manual transmissions or transaxles due to potential synchronizer mesh issues. It is well-suited for clutch-type limited-slip differentials without the need for additional friction modifiers.
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Part #: 57914
Product descriptions are provided by our supplier partners and may not always be perfectly accurate. Not sure this fits? or call (760) 282-4645 and we’ll verify before you order.
Fitment
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Specifications
| Brand | Red Line |
| Part Number | R00B 57914 |
Videos
RED LINE GEAR OIL vs AMSOIL SEVERE GEAR 75W-90 Cold Flow Challenge
RED LINE Gear Oil vs AMSOIL Severe Gear 75W-140 Cold Flow Test
Redline mt90 Manual Transmission Oil Review. Best oil for Manual Transmission.
AMSOIL gear oil mobil 1 valvoline royal purple best gear oil and differential oil
Valvoline Gear Lube vs AMSOIL
How to DAMAGE YOUR TRANSMISSION!!! Redline & Super tech.
Redline vs mobil 1 motor oil UNBELIEVABLE!!
Gear lube testing series Lucas vs Redline Light weight Shock proof 75W140 syn MACT Garage Episode #3
Red Line Big Twin PowerPack Review at RevZilla.com
Redline Gear Oil Review
Why we don'g use RedLine oil in our shop.
Red Line Oil - GL-4 Gear Oils For Manual Transmissions
Redline MT-90 Manual Gearbox Oil Review
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Built for enthusiasts. Every order is backed by our 30 day return window on eligible items. Unused and uninstalled products may be returned with approved RMA and no restocking fees when received in new condition. Orders placed through the MOTORMIA app with a complete build qualify for our Fitment Guarantee — free return shipping if the part doesn’t fit your exact setup. The guarantee covers fit only; installation must follow manufacturer instructions, and we recommend a qualified shop for parts marked Difficulty 4–5.
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Orders are processed in 1–3 business days. In stock parts ship promptly from our partner network. Special-order items either aren’t currently stocked or are built to your spec — expect 4–6 weeks. If a part goes on backorder while your order is in the queue, we’ll reach out and work through discounted alternatives together.
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