STP Synthetic Oil Treatment Engine Oil Additive, 15 fl oz
- Brand:
- STP
- Model Number:
- 18413B
- UPC:
- 071153178816
- EAN:
- 0071153178816
- Walmart SKU:
- 49850176
Key Takeaway
Price locked at $8.92 for 45 days, matching the 90-day average—indicating remarkable stability. Buyers shouldn't expect discounts soon.
Third-Party Seller Summary
| Price Type | Price | Date |
|---|---|---|
|
Highest Price
|
$15.49 | |
|
Lowest Price
|
$15.49 | |
|
Most Recent Price
|
$15.49 |
- Average Price
- $15.49
- First Tracked
- Last Update
Walmart.com Summary
| Price Type | Price | Date |
|---|---|---|
|
Highest Price
|
$8.92 | |
|
Lowest Price
|
$8.38 | |
|
Most Recent Price
|
$8.92 |
- Average Price
- $8.91
- First Tracked
- Last Update
Price Analysis
Tracking History: We have tracked STP Synthetic Oil Treatment Engine Oil Additive, 15 fl oz since 9/23/2023. The most recent price update was on Jul 13, 2026.
Price Range: Over the past 90 days, the price has ranged from $8.38 (lowest on 9/23/2023) to $8.92 (highest on 4/10/2025). The average price during this period is $8.91.
Current Trend: Walmart.com prices have ranged from $8.92 (Jul 13) to $8.92 (Jul 13) over the past 90 days. Current price is close to the 90-day average of $8.92.
Customer Insights: Rated 4.8/5 from 164 reviews.
Customer Reviews
164 reviewsCustomer Reviews
4.8
Based on 164 reviews
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Showing 10 of 164 reviews
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.
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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
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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
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Excellent product to add on oil change
This does extend 5W-30 oil life in your car. This is the third oil change i am using the product, and I change oil after 20,000 miles. Even after 20,000 miles the oil looks pretty clear.
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Reasonably safe additive to keep your car running
Reasonably priced item that simply does it job. I have been using the product with every oil change with no issues to report. i pair it with Mobil 1 Extended Performance on my Infiniti's. The engine runs smoothly, and at least personally, i do fine that the oil holds up better.
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Keeps my car running smoothly, improves performance no matter the weather.
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My Santa fe 2016 sport Engine oil consumption is high. After using this product, I have greatly reduced my consumption.
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I've been using STP products for years and found them to be effective. So to get a good price and next delivery is superb.
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Oil additive
Does what its supposed to
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quality and value
Great product, but thinner than I thought it would be. I would recommend it. A must have especially if you use conventional oil.
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Price History
Recent Price Changes
Detailed price history for the past 90 days
Walmart.com Pricing
45 recordsWalmart.com prices have ranged from $8.92 (Jul 13) to $8.92 (Jul 13) over the past 90 days. Current price is close to the 90-day average of $8.92.
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| $8.92 | — | — |
No third-party seller price history available for this product in the past 90 days.
