July 2021 Archives - UnderhoodService
Direct Injection and Turbochargers

Making more power with less displacement puts additional stress on the engine.

Modern Battery and Alternator Testing Methods

Old methods of testing a battery and alternator aren’t appropriate today. Do the job right to get the right results.

Fluid Maintenance Still Vital To Hybrids And Shop Success

Like conventional vehicles, hybrids still use fluids and maintenance will continue to be required.

Read Our July Digital Edition Magazine

Each issue includes business management articles from ShopOwner and many technical features.