David Weber Oil, founded in 1943, develops, manufactures, and markets high-quality lubricating oils and greases under the name "Gibraltar". This branding choice is likely inspired by the Rock of Gibraltar, symbolizing strength and reliability. In 2024, they expanded operations by merging with Miles Petroleum Company.

1. Gibraltar Ultra LX 15W-40 Premium Conventional Diesel Engine Oil: A robust conventional diesel engine oil that exceeds industry and OEM specifications, offering outstanding protection for heavy-duty applications.
2. Gibraltar 15W-40 Super S-3 LX Premium Synthetic Blend Diesel Engine Oil:A super-premium synthetic blend designed for heavy-duty diesel engines, providing superior engine cleanliness and wear protection, with advanced "soot-busting" technology.
3. Gibraltar Super S-3 Monogrades Diesel Engine Oil: High-performance straight-grade diesel engine oils suitable for various applications, including older engines and hydraulic systems, with versatility across different SAE grades.
4. Gibraltar Powerflo Passenger Car Engine Oil:Premium synthetic blend engine oils formulated for modern gasoline and flex-fueled engines, engineered for superior performance in GDI and turbo-boosted designs.
5. Gibraltar Syn-Pro HP Passenger Car Engine Oils: Full synthetic, high-performance engine oils designed for today's turbocharged direct-injected gasoline engines, offering enhanced protection and performance.
6. Gibraltar European Engine Oils: Full synthetic passenger car engine oil that meets the requirements of the latest high performance naturally aspirated, super-charged and turbo-charged European engines.

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Company Resources
Presentations - Transportation Ind.pdf Weber Oil products for the transportation industry data sheet. It includes a full line of heavy duty sturdy and safe lubricants.