# Red Line 75W90NS Gear Oil - Quart

Helps with lock-up on weak limited-slip differentials-compatible with Red Line Limited Slip Friction Modifier for tuning slippage

-   Helps with lock-up on weak limited-slip differentials-compatible with Red Line Limited Slip Friction Modifier for tuning slippage
-   Designed for transmissions and transaxles - helps to slow synchros for easier shifting across a broad temperature range
-   Contains extreme pressure additives like our 75W90 GL-5 oil, but lacks friction modifiers to balance slipperiness
-   Muscle Car applications like Ford Top Loader, Muncie transmissions, Borg-Warner T-10 and Super T-10
-   Recommended for API GL-5, GL-6, MT-1, MIL-L-2105E and SAE J2360
-   Non corrosive formula, safe for use with all synchro materials
-   Also used with clutch-type LSDs in racing for maximum lock up
-   Improved copper corrosion protection to prolong synchro life
-   Popular in Ferrari, Porsche and Subaru transaxles

## Details

- **Price:** 450.53 CAD
- **Vendor:** Red Line
- **Type:** Gear Oils

## Variants

| Variant | Price | Available |
|---------|-------|-----------|
| Default Title | 450.53 CAD | In stock |

## Images

- Photo - Primary
- Photo - Primary
- User 1

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> Source: [Standard Auto Part](https://www.standardautopart.com/products/red-line-75w90ns-gear-oil-quart)
> Updated: 2026-08-15