Opti-Lube XL Xtreme Lubricant Diesel Fuel Additive — 1-Quart Bottles — 12-Pack
Twelve filled 1-quart bottles (32 fl oz each). XL adds fuel-system lubricity, cleans injectors and helps protect against rust and corrosion. Treats up to 3,840 US gallons at the standard rate; the premium rate treats less fuel.
Opti-Lube XL Xtreme Lubricant Diesel Fuel Additive — 1-Quart Bottles — 12-Pack
Opti-Lube XL is a concentrated diesel fuel additive that adds fuel-system lubricity, cleans injectors and helps protect against rust and corrosion. It supports reduced wear in fuel pumps and injectors and is compatible with modern vehicle emissions systems.
Product data
| SKU | OPT-XLQRT12 |
| Formula | XL Xtreme Lubricant (purple label) |
| Package contents | Twelve filled 1-quart bottles (32 fl oz each). |
| Additive volume | 384 fl oz total; 32 fl oz per filled container |
| Fuel type | Diesel fuel; compatible with ULSD and biodiesel |
| Standard treat rate | 1 US fl oz per 10 US gallons of diesel (1:1,280) |
| Premium treat rate | ¼ US fl oz per US gallon or more, as directed on the label (1:512 or stronger) |
| Package treatment capacity | Up to 3,840 US gallons at the standard rate; 1,536 gallons at ¼ fl oz per gallon. Higher doses treat less fuel. |
| Per-bottle treatment | Up to 320 US gallons at the standard rate; 128 gallons at ¼ fl oz per gallon. |
Treatment and use
Measure XL for the amount of diesel being treated. The standard label rate is 1 US fl oz per 10 US gallons. For maximum lubricity and deposit control, use the premium label rate of ¼ US fl oz per gallon or more. For example, 20 gallons requires 2 fl oz at the standard rate or 5 fl oz at the listed premium rate. All volumes are US measures.
XL does not contain anti-gel and does not provide cold-weather anti-gel protection. For preventive cold-weather protection, choose XPD All-Season or Winter as appropriate for the conditions and follow the selected product's label. Preventive anti-gel must be added before fuel gels. XL may be mixed with other Opti-Lube diesel fuel additives as stated on the label; follow each product’s directions.
Read the product label and Safety Data Sheet for complete handling, storage and safety precautions. Continue normal fuel-filter and water-separator maintenance.
