I use Redline CVT No Slip. It’s spec’d for my Mitsubishi Mirage, meets J4 standard. Very grabby fluid, it’s more responsive than it ever was with the factory fluid. Glad to hear it worked out for you. Be sure to stay on top of the service intervals.
Reviews of RED LINE parts For Business
USA
Red Line.
I like red line oils, because they have a bit more zddp which is nice for the rockers.
On chilly winter mornings (SF Bay Area) the car did not like reverse or first gears. Subsequently switched to Red Line engine oil. More power, better mileage.
Some do work, they need a high PEA content to be effective though. I use Redline SL-1 for my B58.
Ran Redline 5w40 when it became purely a summer car in ~2013. ... Not seals are leaking, no issues of any form. Car has been Cobb stage 2 91oct tuned (OTS, not pro-tuned) almost 14 years, with a Crawford v2 AOS, Killer B oil pickup + windage tray being the only reliability mods, and it doesn't burn a single molecule of oil.
Redline is great, used it for years in a track car.
My STI also used it for a while (0w40), but then switched to Rotella.
Redline user have been since I picked up my 04 WRX wagon two years ago. Auto crossed and rally crossed. Works great have had zero issues, also at 170,000 miles on the original engine and still running strong.
For track use only, dries like normal water when spilled, doesn't leave slippery residue. Please run normal coolant specified by the manufacturer, it has additives that stop your engine from rusting internally.
I had tried Redline MT90 to get rid of the intermittent grind into 2nd, but it made all shifting more difficult and always grind into 2nd. So I went back to OEM.
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Owner reviews of RED LINE products
The RED LINE brand is registered in USA. Official website is not specified yet.
In March 2026, PartReview recorded 125 reviews across 6 parts by RED LINE. Average rating — 4.4 out of 5.
RED LINE is in the PartReview manufacturers ranking, currently at position 21. Over the last 30 days it dropped by 11 points.
Popular RED LINE parts
The most popular RED LINE products on PartReview:
- Engine oil RED LINE - 81 review. PR Score — 94, average rating — 4.6.
- Gear oil RED LINE - 36 reviews. PR Score — 80, average rating — 4.1.
- Fuel additives RED LINE - 5 reviews. PR Score — not available yet, average rating — 4.6.
- Brake fluid RED LINE - 1 review. PR Score — not available yet, average rating — 4.5.
- Antifreeze RED LINE - 1 review. PR Score — not available yet, average rating — 3.5.
Most owner reviews about RED LINE parts are collected on these pages.
Top-rated RED LINE parts
RED LINE achieved top positions in these PartReview part rankings:
- Best gear oil — ranked 1 among 3 manufacturers. Received 183 votes.
- Best engine oil — ranked 9 among 32 manufacturers. Received 12429 votes.
Comparisons of RED LINE parts
The most interesting comparisons of RED LINE with other manufacturers help you see which is better: