They are junk. 2.4 GMC 20 over oil ring grooves to wide rings slip off expander
Cons: junk quality, wide ring grooves
Reviews of DNJ piston rings
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3 votes
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1 review
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What we know about DNJ piston rings
The brand is registered in USA. Official website: http://enginecomponents.com/.
In March 2026, PartReview does not yet have a formed opinion of DNJ piston rings. You can help by adding a review for DNJ piston rings.
Currently there are 1 review and 3 votes. Average rating — 1 out of 5. Vote balance: 0 up, 3 down.
Users also evaluated the qualities of DNJ piston rings:
- Smoke - blue smoke on acceleration or overrun indicates ring wear - no rating yet
- Power - sluggish acceleration shows compression loss - rated negatively. 1 point out of 5.
- Oil use - frequent top-ups are a simple sign the engine is burning oil - rated negatively. 1 point out of 5.
Piston rings DNJ in car-specific ratings
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