505 CRO Oil System Treatment (505 CRO Oil System Treatment 12 FL OZ)
505 CRO Oil System Treatment (505 CRO Oil System Treatment 12 FL OZ)
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505 CRO Oil System Treatment (505 CRO Oil System Treatment 12 FL OZ)

4.5 stars out of 25 reviews
(4.5)|
25 ratings

Key item features

  • Engine Performance: Improves overall engine performance by ensuring smoother operation.
  • Lubrication Enhancement: Enhances the oil's ability to lubricate moving parts, reducing friction and wear.
  • Cleaning Action: Helps remove sludge, varnish, and other deposits that can accumulate in the oil system, keeping it clean.
  • Component Protection: Addresses issues with sticking piston rings, lifters, camshaft phasers, oil control valves, and timing chain tensioners.
  • Compatibility: Usually safe for use with various types of engine oils and vehicles, though specifics should be checked on the product label.
  • Usage Instructions: Pour the treatment directly into the oil system, either during an oil change or as specified by the product, after warming up the engine.
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Current price is $48.00
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Columbus, 43215
Arrives by Fri, Feb 6
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4.52 stars out of 5, based on 25 seller reviews(4.5)
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Customer ratings & reviews

4.5 out of 5 stars
stars25 ratings15 reviews
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Showing 1-3 of 15 reviews

Jun 4, 2025
Sammy
Sold bySavvy Selections LLCDelivered byWalmart
5 out of 5 stars review

Verified Purchase

Good for removing carbon

Removed carbon from Kia GDI engine. Changed oil after use. Oil is not turning black like before. Still burning some oil but doesn't seem to be as bad. Just wish it was not so expensive.

Incentivized Review
Helpful?7B8F8KNMYMZS15187351150
Jul 16, 2025
Ryan
Sold bySavvy Selections LLCDelivered byWalmart
5 out of 5 stars review

Verified Purchase

Works great!

This stuff works great! Easy to understand and I noticed a difference right away. It brought down the sound of my engine running quite a bit. Thanks

Helpful?7B8F8KNMYMZS15187351150
Jul 2, 2025
anonymous
Sold bySavvy Selections LLCDelivered byWalmart
5 out of 5 stars review

Verified Purchase

A

Very easy to use. A good product that I will continue to use. I found out about it from friends who work on cars.

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Helpful?7B8F8KNMYMZS15187351150