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JR 4.0 5/20W Full Synthetic 1 quart

Full Synthetic Racing Oil

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JR 4.0 5/20W Full Synthetic 1 quart

Championship winning formula. A perfect combination of performance and durability.

Part #: 25281-1

Price: $13.49
Quantity:

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1 5 out of 5 stars by Geoff T. on January 9th 2019

JR 4.0 5/20W Full Synthetic 1 quart

Length of ownership: more than 1 year

Pros: In nearly 40 years of racing, hands down the best oil I’ve ever used. Made more power on the dyno ever time we backed to backed it. In some in unusual circumstances (nearly two full passes at very low oil pressure), protected enginevand bearings. Holds up well and keeps performing after many, many pulls / passes.

Cons: If I run out, I can’t buy it at Autozone...but I can easily get it online now !

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