Free repair checklist
Dodge Challenger Hemi Maintenance Guide
The Hemi engine is bulletproof when maintained right — and destroys itself when it's not. This guide covers the exact oil spec, spark plug interval, and MDS lifter protocol every Challenger owner needs to know.
This checklist is a practical starting point. The DIY Mechanic System gives you a clearer path to diagnose the problem, plan the job, and complete the repair.
What this checklist covers
- Diagnose the Hemi cam and lifter tick early — the two warning signs that tell you whether it's a $15 fix or a $3,000 engine job
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