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14 reviews
Diff leak
At this time cannot make full comment as the leak is still leaking. I will give the product time to work before I either add another tube or go against the claims on the product to stop leaks
Verified purchase: Yes • Condition: new • Sold by: ultimateproductz_1
Avoid this stuff!
Avoid this stuff! I've used it for the purpose as on the box. Removed old oil which wasn't that bad yet - clear but a bit darker like black tea colour, then I've added Wynns to a differential with fresh, high quality branded synthetic oil (OEM specs). I didn't notice a lot of improvement maybe a bit of noise reduction due to the thickness of this stuff but after a while it get a bit noisier. I've done several longer journeys about 300 - 700 miles each. When differential wormed up it become as noisy as before and adding it - giving no difference after 1hr of constant driving. After about 3K miles I decided to check it how is it like and thanks Good I did as instead of nice, clear yellowish oil come out grey brownish slightly green slime like liquid with slight metallic sheen. This stuff was killing my differential. There is One positive thing - looks like it stopped oil leak. I've drain it completely and refiled differential with fresh clean OEM spec oil.Read full review
Verified purchase: Yes • Condition: new • Sold by: ultimateproductz_1
The noise got worse
I followed the instructions for my c class Mercedes, added the product to the rear axle which was just starting to whine, within a couple hundred miles it is considerably louder than it was before I put it in.
Maybe a coincidence, but I don't see it that way.Read full review
Verified purchase: Yes • Condition: new • Sold by: yes-car-parts
excellent
used it for years excellent product
Verified purchase: Yes • Condition: new • Sold by: ultimateproductz_1
Quality product
It does want it says on the tube great product 10/10
Verified purchase: Yes • Condition: new • Sold by: yes-car-parts
Good additive
Gearbox had no leak, I put it in to cut down friction.
Verified purchase: Yes • Condition: new • Sold by: yes-car-parts
Gearbox addative
It does a good job of making the gearbox less noisy.
Verified purchase: Yes • Condition: new • Sold by: 123_autocare
Quantity probably too little to make a difference
Didn’t make any difference to the noise
Verified purchase: Yes • Condition: new • Sold by: yes-car-parts
Very pleased
Good product
Verified purchase: Yes • Condition: new • Sold by: 123_autocare
didnt make any difference
didnt make any difference to my car wen added it the noise is stil there
Verified purchase: Yes • Condition: new • Sold by: yes-car-parts