PPI Auto Knowledge Base

The Inspection
Blog

Real talk on buying used vehicles — from private seller red flags to commercial truck pitfalls. Know more, pay less, get burned never.

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Everything You Need to Know
Before You Buy

Buyer's Guide
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2025  ·  Buyer's Guide

What to Watch Out For When Buying from a Private Seller

Nine things every buyer must verify before handing over a dollar — title fraud, OBD-II tricks, odometer rollbacks, and more.

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Commercial Truck Buying Guide: What Fleet Buyers Get Wrong

The most costly mistakes buyers make when purchasing Class 6–8 trucks — and how a proper PPI prevents every one of them.

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What the OBD-II Readiness Check Actually Tells You

Cleared codes, incomplete monitors, and how sellers use the OBD system to hide check engine lights right before a sale.

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