Without getting too technically geeky, Diesel Exhaust Fluid, or DEF, is an aqueous urea solution that's generally 32.5-percent urea and 67.5 percent deionized water. It's injected into the diesel ...
GM has reissued a service bulletin describing a fix for several possible problems found in several 2020 through 2024 Chevrolet models, including the Chevy Silverado pickup truck, Chevy Tahoe SUV and ...
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