Red Line Automatic Transmission Fluid D4 ATF 1 Quart - Universal
Red Line Automatic Transmission Fluid D4 ATF 1 Quart - Universal
Red Line
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PRODUCT DETAILS ▾
RallySport Direct is proud to bring you some of the best lubricants in the industry brought to you by Redline.
This is the Red Line D4 Automatic Transmission Fluid. Red Line engineered this fluid to provide your transmission with optimal lubrication properties, anti-friction protection, as well as protection against heat. This is a high-performance fluid that is compatible with many makes and models and is an all-synthetic formula.
DETAILS:
- Fully synthetic fluid satisfies low-temperature requirements which will be in the new Dexron IV specifications
- D4 ATF provides a GL-4 level of gear protection
- Balanced frictional characteristics provide smooth and consistent shifts for extended drain intervals
- Superior stability allows high-temperature operation without varnishing valves and clutches which leads to transmission failure
- Provides improved shifting in cold weather
- Sold individually in a 1 US quart container
WHY WE CARRY THIS ▾
We only list parts we’d run ourselves or recommend to a friend building a real car. If it feels vague, unverified, or inconsistent, it doesn’t make the cut.
- Fitment-first mindset — no “universal” roulette
- Brand reputation matters — we favor proven manufacturing
- Support that actually responds with real answers
WHAT TO EXPECT ▾
This is the clean path: correct fitment, clean install, and results that match the intent.
- Install-ready experience with correct mounting where provided
- Finish that holds up to real driving, not just photos
- Selections on this page drive the exact fitment shipped
TRUST, BUILT INTO THE PROCESS.
Anyone can list parts. We curate what belongs on a serious build. Our goal is simple: fewer surprises, cleaner installs, and confidence when you hit “Buy.”
Fitment checked
We prioritize vehicle-specific listings and clear selection logic so you’re not gambling on compatibility.
Brand discipline
Proven manufacturing and consistent quality matter more than hype. We bias toward what actually holds up.
Real support
If you have a question, you’ll get a human answer that helps you finish the build — not a copy-paste shrug.
RallySport Direct is proud to bring you some of the best lubricants in the industry brought to you by Redline.
This is the Red Line D4 Automatic Transmission Fluid. Red Line engineered this fluid to provide your transmission with optimal lubrication properties, anti-friction protection, as well as protection against heat. This is a high-performance fluid that is compatible with many makes and models and is an all-synthetic formula.
DETAILS:
- Fully synthetic fluid satisfies low-temperature requirements which will be in the new Dexron IV specifications
- D4 ATF provides a GL-4 level of gear protection
- Balanced frictional characteristics provide smooth and consistent shifts for extended drain intervals
- Superior stability allows high-temperature operation without varnishing valves and clutches which leads to transmission failure
- Provides improved shifting in cold weather
- Sold individually in a 1 US quart container
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