

🛠️ Keep your ride shifting like new—don’t let worn transmissions slow you down!
Lucas Oil 40009 Transmission Fix is a 710ml synthetic additive designed to reduce transmission slip, lower operating temperatures, and stop foaming without the need to drain existing fluid. Compatible with most transmissions except CVT, it improves shifting smoothness and seals leaks, extending transmission life and performance.
| ASIN | B09DGQDKL1 |
| Best Sellers Rank | 6,631 in Automotive ( See Top 100 in Automotive ) 15 in Gear Oils |
| Brand Name | Lucas Oil |
| Container Type | Bottle |
| Country of Origin | USA |
| Customer Reviews | 4.3 4.3 out of 5 stars (159) |
| Included Components | One Bottle |
| Item Form | Liquid |
| Item Type Name | Oil Additive |
| Item Weight | 0.72 Kilograms |
| Liquid Volume | 809 Millilitres |
| Manufacturer | Lucas Oil Products Inc |
| Material | Synthetic |
| Recommended Uses For Product | lubricating and improving the performance of vehicle transmissions |
| Specific Uses For Product | Lubrication, Performance Improvement for Vehicle Transmissions |
| UPC | 049807800093 049807400095 049807300098 |
| Unit Count | 710.0 millilitre |
| Viscosity | 0w |
A**S
Good
Good
M**N
Finally! Something which masked my syncro crunch issue!
I have tried various gearbox oil additives and found not many are for bad gearbox syncros. Like its not going to repair something that is already broken. Even Redline’s Shockproof gear oil failed to cure/mask my failing syncros. Additives like Molybdenum are too slippery for gears in higher quantities therefore I can’t use this for something which has issue gripping to begin with. I was originally going to use the Lucas Oil Stabiliser until I saw a video on YouTube conducted by ProjectFarm who showed improvements of an automatic gearbox gripping gears better with the Lucas Stop Slip additive. Therefore, I was convinced that this might do the trick. The car I used this in is a Nissan Skyline R33 GT-R. It says to use two bottles for badly worn transmissions. Considering I could still get into all gears, some with crunching, i figured I’d try 1.5 of a bottle for the gearbox and split the remaining of the bottle, so 0.25 of a bottle in each differential (front and rear). Alongside Lucas Gear Oil 80w90. Something just overall thick and consistent. This did just the trick! 3rd and 4th gear syncro crunch cured! Its not buttery smooth, still might need to double clutch to get into first gear from neutral for example but its definitely an improvement when driving! If you are looking for an additive to help prolong the life of failing syncros or worn transmissions. I recommend buying this to keep the car running until you can either replace/repair the gearbox.
P**Z
It worked on my fiat panda.
Fixed the gearbox leak in my Fiat Panda 2011 1.2 manual. Do yourself a favour after unscrewing the top put a small hole in the foil seal then stand in a pan of simmering water for an hour, a rubber tube easily fits over the conical shaped end. I managed to put half of this to the existing oil no problem, gotta squeeze hard though. It was possible to move the breather pipe away from the air filter housing and push tube up through the engine bay and other end in gearbox do it stood up. Hope that makes sense.
M**T
So far so good
I have an old VW with a 6 sp zf box about 150k...even though I've done 3 fluid changes, filters, I still get the old owl whoop noise....even using lifeguard 6...drained out 1 lite of the old crap, mixed up the squeak stop with 0.5 litre of new arf fluid, this stuff IS VERY THICK AND HEAVY, takes a while to get liquid, then pumped it in...a day later, massive improvement in torque converter judder at 1 - 2k... A classic issues on the zf 6sp box... This should keep it going till I scrap the car, but the driveability is so much better ... Worth the effort, just hope it lasts a few years !!
F**S
OVER RATED !…
This is a lubricant!.. what does it do? It lubricates. This not a PART or a TOOL.. so don’t expect a miracle like Moses that you a chosen one. In many cases it will not work for you.
B**E
Really THICK takes an age to warm up
Remove the sump and put the contents in. Then add the ATF. It's faster, cleaner and easier. It sits in the ATF sump pan until warmed up. Don't over do the amounts or the solenoids WILL struggle to push it through.
R**D
Stopped TC shudder
Solved immediately my shudder and slip in cayenne turbo transfer case. Mixed 40/60 with atf Definitely worth a go
J**S
Works like a charm.
Previous owner neglected the powershift transmission. Changed fluid and filter but that did not improve the rough shift in 1st gear. Added all of this bad boy to transmission and shifting like a charm now. Highly recommended!
A**H
خفف معي النتعات على اكسنت اتوماتيك كانت تفلت التعشيقات بقوة غيرت ٣ علب وضفت العلبة الرابعة المحسن
ش**A
يقوم بتحسين الاداء لكن اتوقع بحسب المشكلة الاساسية بالنسبة لي قام بمعالجة مشكلتي بنسبة ٥٠ بالمئة فقط مازلت اشعر بها
N**I
I bought this for a quick fix because I read some reviews and saw it worked but it didn’t work for me.
م**ي
ممتاز تم الشراء مرتين
L**N
ممتاز عن تجربه على كيا محرك 1.6 قير 6 غيارات
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