About

Under Hood Specs is a reference for the numbers you look up in the garage or before hooking up a trailer: how much oil goes in, how much the truck can tow, what to torque the lug nuts to.

Those numbers already exist in owner's manuals and towing guides, spread across hundreds of PDF pages per year. We pull them into one table per truck, keep the configuration details that change the answer, and cite the document and page for every figure.

We are independent and not affiliated with any vehicle manufacturer. See the methodology for where the figures come from.