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- catshakseller (2160)- Feedback left by buyer.Past yearVerified purchaseA pleasure to do business with. A+++
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Reviews (1)

Mar 20, 2018
Did not work for me
I used it on my cummins 14L engine red top. I did not notice much difference in sound, performance or blow by. I ended up replacing it with a thicker oil 25W-60 which immediately quieted the engine noise and reduced blow by. My engine maybe two worn down for this product to work or the product may not work at all.