Been using this product for30 year put it in all the cars I owned with every oil change.There’s one occasion I remembered pulled down a motor and suspected blown head gasket found loose head bolts,decided to rebuild motor and found it still had factory hone marks in the bores and crank was almost perfect with a 300000,From that day alway thought this stuff really work to reduces wear.Another time I lost my water and temperature gauge was still showing normal until I realised thought I cooked the engine ,but also reckoned this nulon additive saved that engine also.i recommend this stuff it works.👍
Verified purchase: Yes | Condition: New
With almost 300K's the 2006 Getz engine is still running well and with good economy and performance
Verified purchase: Yes | Condition: New
Used this product for many years and in many cars. Seems to improve engine longevity and smooth running.
Verified purchase: Yes | Condition: New
This product, along with a change of engine oil helps to keep my car's engine quiet and run smoothly.
Verified purchase: Yes | Condition: New
Excellent product, worth every penny.
Verified purchase: Yes | Condition: New
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