Driven GP-1 15W-40 High Performance Semi-Synthetic Engine Oil, Part No. 19406, is a 1-quart formulation designed to provide dependable lubrication for modern engines. This semi-synthetic oil supports proper lubrication of essential engine components, helping minimize wear and maintain smooth operation across a broad temperature range. The GP-1 blend targets steady oil film protection with clean performance, reducing sludge and deposits that can impair efficiency. Over time, oil breakdown, contamination, and wear can degrade lubrication and engine life. Replacing with Driven GP-1 helps maintain viscosity and protective film, supporting reliability between service intervals. Driven is a trusted aftermarket manufacturer known for reliable engine lubrication components, delivering OE-quality replacement oils engineered for dependable performance.