4.84.8 out of 5 stars
50 product ratings
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Would recommend92% agree

Good value91% agree

Good quality91% agree

37 Reviews

by Top favorable review

Best ATF Hands Down for your Race Car or Daily Driver

Very impressed with the MPG increase, power and driveability improvements since the flush with Red Line ATF D4

I was worried my Nissan Frontier with 176K would not like the new fluid since it wasn't changed for many miles, but everything turned out fine with the new filter as well.

I regret not doing this flush sooner.

All Red Line Lubricans work and can handle the demand you put them through. Off road, racing or daily commute, this product will help your vehicles
Read full review...

Verified purchase:  Yes | Condition: new | Sold by: racecarpartsonline

by Top critical review

Redline D4 ATF Synthetic

Replaced my manual trans fluid on my 95 E36 325i with this and the gears became rough to shift, including a horrible 5th gear grind. I am not sponsored by anybody, once i changed fluid with royal purple syncromax, the shifting became smooth again.Read full review...

Verified purchase:  Yes | Condition: new | Sold by: pandaracingpro

by

I have always used red line products but this last purchase I found a new use for this product.It is good on rusted chains ect.

This is a great product that I use in my bmw power steering.I also used it on a rusty motorcycle chain and in just minutes the chain looked new.

Verified purchase:  Yes | Condition: new | Sold by: racecarpartsonline

by

Different Car

This stuff....this stuff right here. I drive a 2003 BMW M3 convertible with the SMG with 131K on it. I've only had her for a couple years. Did some reading and read this stuff does a good job. My car, literally, drives better. Shifts are butter smooth when cruising. When driving a little...less than savory...she shifts without that clunk in the back end I've been told is common(the M clunk). I've had it in the car for about 2 weeks and have put about 300 miles on it and noticed the difference immediately and it still feels the same. I recommend this all over.Read full review...

Verified purchase:  Yes | Condition: new | Sold by: powerpartsdirect

by

Fantastic!

Redline is a phenomenal brand and I use mainly with almost all my fluids. Oil I still use Mobil 1 because it is cheaper, and only for that reason. I believe redline is as good, but probably better than amsoil or royal purple, at least for my 2001 Tacoma. Virtually no shavings in my atf filter or fluid, and goes for my power steering too.Read full review...

Verified purchase:  Yes | Condition: new | Sold by: racecarpartsonline

by

Redline

I have read a lot of positive things about Redline products. I used their ATF fluid in my 2000 F350 powerstroke with a ZF6 speed. It shifts a little smoother but still a lot of rollover gear noise.

Verified purchase:  Yes | Condition: new | Sold by: racecarpartsonline

by

Great product

I've used Red Line products in my standard trans before and how it helped the syncro problems, and this product is no different.

Verified purchase:  Yes | Condition: new | Sold by: thitangeles

by

This product protect your car so really good quality I recommend it highly

Verified purchase:  Yes | Condition: new | Sold by: baronconcepts

by

Redline is #1

Eliminated rough/jerky downshifts and shifting overall is smooth and tight. Pro tip: use with Lube Guard Platinum for outstanding results.
(2007 Acura TL 3.2L 258hp)

Verified purchase:  Yes | Condition: new | Sold by: baronconcepts

by

I read it out performs Amsol

After reading BMW z4 forums I went with Redline, replaced the oil and really çan't tell the difference in shifts that much but I know it's quality oil.

Verified purchase:  Yes | Condition: new | Sold by: powerpartsdirect

by

oil smells really bad when cold start

maybe is me or my car but when i stared the car the smell is outside and inside the car,,after warm up is ok but,i just not use to smell atf inside my car,so far the oil is ok

Verified purchase:  Yes | Condition: new | Sold by: aristocrat_coll...

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