(6 pack) STP Synthetic Oil Treatment Engine Oil Additive, 15 fl oz
(6 pack) STP Synthetic Oil Treatment Engine Oil Additive, 15 fl oz
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(6 pack) STP Synthetic Oil Treatment Engine Oil Additive, 15 fl oz

4.8 stars out of 150 reviews
(4.8)|
150 ratings

Key item features

  • Enhanced Protection: Formulated for low-viscosity oils, this synthetic oil treatment provides extra protection, especially beneficial for extended oil drain intervals.
  • Engine Cleanliness: The included detergents actively work to keep the engine clean and effectively prevent the formation of harmful deposits.
  • Oil Durability: Antioxidants enhance the oil's durability, preventing breakdown and reducing oil burning for sustained performance.
  • Wear Defense: ZDDP oil additive is incorporated to help protect against engine wear, contributing to the efficient operation of your vehicle.
  • Synthetic Compatibility: Utilizes a high-quality synthetic base oil, ensuring it seamlessly integrates without diluting your motor oil.
  • Routine Application: Designed to be added to your synthetic oil during each routine oil change for continuous engine care.
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Current price is $53.5259.5 ¢/fl oz
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Columbus, 43215
Arrives by Tue, Feb 24
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  • 6-pack of STP Synthetic Oil Treatment Engine Oil Additive, 15 fl oz
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Customer ratings & reviews

4.8 out of 5 stars
stars150 ratings58 reviews
How item rating is calculated

Reviews summary

Pros
  • : Engine runs smoothly with lubricated components.
  • : Offers value-based pricing.
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Showing 1-3 of 58 reviews

Jul 6, 2025
anonymous
Top Reviewer
Item details
Multipack quantity: 1
5 out of 5 stars review

Verified Purchase

Really restored my car's performance!

Works like a charm and highly economical. One bottle before changing your oil and it really cleans out the built up gunk! Be sure to follow directions.

Helpful?32BEQ2IM94WY15578670251
Sep 16, 2025
Bigbob
Item details
Multipack quantity: 1
5 out of 5 stars review

Verified Purchase

Always have trusted STP products, with the high performance required of today's engines, and the extended period between oil changes I have confidence when I add STP synthetic oil treatment to my engine oil

Helpful?32BEQ2IM94WY15578670251
Jul 11, 2025
Steven
Item details
Multipack quantity: 1
5 out of 5 stars review

Verified Purchase

I've always used this product with every oil change, its add more lubricant to the inside of my motor and helps things run more smoothly

Helpful?32BEQ2IM94WY15578670251