# TLDR Review: Lucas Oil 10977 Fuel Treatment

*Published: 2025-02-15 | Updated: 2025-01-02 | Source: https://shopsavvy.com/reviews-tldr/lucas-oil-10977-fuel-treatment*

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## Product: Lucas Oil 10977 Fuel Treatment
**Brand:** Lucas Oil

## Pros
- Noticeable improvement in gas mileage, from 22.1 mpg to 23.7 mpg.
- Effectively smooths rough idle for high mileage vehicles, such as a 1998 Jeep XJ with 196K miles.
- Benefits observed in engine performance and reduction of engine noise, making it 75% quieter.
- Reduces hesitation during acceleration, particularly during highway merges.
- Extended fuel life, with a tank lasting about 5 days instead of 3.
- User-friendly design with a thin spout for easy pouring without spills or strong chemical smells.
- Recommended for regular use to keep the engine and fuel system lubricated and clean, noticing ongoing benefits.
- Helps vehicles potentially pass emissions tests.
- Convenient for use, especially when the gas tank is between empty and a quarter full for optimal results.
- Suggests using in combination with Lucas Oil Octane Booster for enhanced performance.

## Cons
- Initial testing may show no improvement, especially with short trips.
- Minimal improvement may be observed in cars that already run well and don’t burn oil, like a 2014 Rav4.
- Mileage improvement may not be significant enough for all users to attribute to the product alone.

## Bottom Line

The Lucas Oil 10977 HIGH Mileage Fuel Treatment is an ideal choice for older, high-mileage vehicles, offering improvements in idle smoothness, engine performance, and gas mileage. While initial results may vary, regular use can lead to significant long-term benefits. For those running vehicles with over 75K miles, this fuel treatment can help maintain a clean and lubricated fuel system, potentially even assisting in passing emissions tests. Consider pairing it with Lucas Oil Octane Booster to maximize performance gains.

## Pros vs Cons at a Glance

| Pros | Cons |
|------|------|
| Noticeable improvement in gas mileage, from 22.1 mpg to 23.7 mpg. | Initial testing may show no improvement, especially with short trips. |
| Effectively smooths rough idle for high mileage vehicles, such as a 1998 Jeep XJ with 196K miles. | Minimal improvement may be observed in cars that already run well and don’t burn oil, like a 2014 Rav4. |
| Benefits observed in engine performance and reduction of engine noise, making it 75% quieter. | Mileage improvement may not be significant enough for all users to attribute to the product alone. |
| Reduces hesitation during acceleration, particularly during highway merges. |  |
| Extended fuel life, with a tank lasting about 5 days instead of 3. |  |
| User-friendly design with a thin spout for easy pouring without spills or strong chemical smells. |  |
| Recommended for regular use to keep the engine and fuel system lubricated and clean, noticing ongoing benefits. |  |
| Helps vehicles potentially pass emissions tests. |  |
| Convenient for use, especially when the gas tank is between empty and a quarter full for optimal results. |  |
| Suggests using in combination with Lucas Oil Octane Booster for enhanced performance. |  |

## Current Prices

| Retailer | Price | Availability |
|----------|-------|-------------|
| Amazon | $2.66  | In Stock |
| DJS Auto Body and Service | $5.00  | In Stock |
| Hardware & Moreee | $5.85  | In Stock |
| SuperShop | $5.99  | In Stock |
| SHC Supply | $6.29  | In Stock |
| Ideal True Value Home Center | $6.31  | In Stock |
| CARiD | $6.42  | In Stock |
| Autoplicity.com | $6.81  | In Stock |
| Boatplicity | $6.81  | In Stock |
| THMotorsports | $6.81  | In Stock |
| shop.advanceautoparts.com | $7.00  | In Stock |
| Sport Compact Warehouse | $7.85  | In Stock |
| Fleet Farm | $7.98  | In Stock |
| Lowe's | $7.98  | In Stock |
| Menards | $7.98  | In Stock |
| bomgaars.com | $7.99  | In Stock |
| Target | $7.99  | In Stock |
| AgKits | $8.13  | In Stock |
| Rural King | $8.19  | In Stock |
| MAPerformance | $8.60  | In Stock |

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*About this review: We pulled together findings from professional and user reviews, and cross-referenced them with ShopSavvy's pricing data from thousands of retailers to give you the short version.*