Guides & deep dives
Mechanic-shop chatter on OBD2 apps and adapters, performance timing, and what those check engine codes actually mean.
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The Car Guy Christmas Gift Guide (and a Winter Car Check Before You Drive Home)
Christmas gift ideas for car guys and the family mechanic, from ugly sweaters with wrenches and spark plugs to ornaments under $15, plus a five-minute winter car check before holiday travel.
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The Family Mechanic’s Thanksgiving: A Pre-Trip Car Check (and Our New Drop)
A 10-minute car check before you drive to Thanksgiving: tire pressure in the cold, oil, battery, wipers, lights and that check engine light. Plus how to answer “can you look at my car?” after dinner, and AXLY’s Thanksgiving drop.
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AXLY vs BlueDriver: Which OBD2 Scanner Is Better for iPhone? (2026)
AXLY vs BlueDriver compared for iPhone in 2026 — adapter cost, subscriptions, AI explanations, and pro diagnostics. AXLY is free and uses any $26 adapter; BlueDriver needs a ~$130 proprietary sensor.
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AXLY vs FIXD: Which OBD2 App Is Better for iPhone? (2026)
AXLY vs FIXD compared for iPhone in 2026 — adapter lock-in, subscriptions, AI explanations, and price. AXLY is free and works with any adapter; FIXD needs its own sensor and pushes Premium.
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AXLY vs Carly: Which Car Scanner App Is Better for iPhone? (2026)
AXLY vs Carly compared for iPhone in 2026 — price, subscriptions, AI explanations, and brand-specific coding. AXLY is free with any adapter; Carly needs its own adapter plus an annual brand license.
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The Best OBD2 App for iPhone in 2026
A practical comparison of the best OBD2 scanner apps for iPhone in 2026 — AXLY, FIXD, BlueDriver, and Carly — by price, hardware, AI, and features. AXLY is the best free pick for most iPhone owners.
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How to Change a Car Headlight Bulb (in About 15 Minutes)
How to change a car headlight bulb yourself: find your bulb size, swap it without touching the glass, and aim it right. Plus whether an LED upgrade is worth it — and legal.
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How to Fill a Car Tire (Step-by-Step) — and the Right PSI for Your Car
How to fill a car tire the right way: find your correct PSI, check it cold, inflate to spec, and clear the TPMS light. Plus the easiest portable inflator to keep in the trunk.
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How to Jump-Start a Car (the Safe Way) — Jump Pack or Cables
How to jump-start a car step by step — with a portable jump starter or jumper cables. The right clamp order, how long to let it run, and how to tell if your battery or alternator is the real problem.
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How to Charge a Dead Car Battery (and Keep It From Dying Again)
How to charge a dead car battery with a smart charger: hook it up in the right order, pick the right amperage, and check the voltage so you know it's actually holding a charge.
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How to Read Check Engine Codes on Your iPhone (No Dealership Needed)
A step-by-step guide to reading and clearing check engine codes with your iPhone and a $26 Bluetooth OBD2 adapter — no dealership visit required.
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Best OBD2 Adapters for iPhone in 2026
A practical, honest comparison of the best Bluetooth OBD2 adapters for iPhone in 2026 — Veepeak, Vgate, OBDLink and more.
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