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Build 42 Vehicles: Hotwire, Fuel, Trailers & Work-Van Loot

Two guides plus the official 42.20 overview agree on Build 42 vehicles: hotwire gates, hose siphoning, powered pumps, and work vans spawning trade-specific loot.

42.20 Last updated: 4 min read

FAQ

How do I hotwire a car in Build 42?
Sit in the driver seat, open the vehicle radial, pick Hotwire Engine, then start it. Both guides state the same gate: Electrical 1 plus Mechanics 2, or the Burglar occupation, which skips the requirement entirely.
Do gas stations still work after the power goes out?
Not as you remember them. Both guides agree pumps dispense only while powered, so post-shutoff fuel runs mean dragging a generator to the pumps and treating the noise as the risk it is.
What are work vans worth in Build 42?
More than their stats suggest — the official 42.20 overview confirms business work vans spawn 'each loaded with its own special and specific loot,' and both guides catalogue trade variants from blacksmith step vans to mobile libraries. Open every weird business vehicle.
Can I use a car for combat?
As transport, yes; as a weapon platform, no. Both guides agree ramming damages bumpers, headlights and the engine over time while the thumps call more walkers — use vehicles to leave, not to mow.

How Do You Start a Car You Have No Key For? Cross-Verified

The gate is confirmed identically in both guides and matches the anchor already published on our Electrical skill guide: hotwiring needs Electrical 1 and Mechanics 2, or the Burglar occupation which skips the gates. The loop is seat → vehicle radial → Hotwire Engine → start, and a working battery is still required underneath it all. One guide adds that attempts make noise and can trip alarms, and that better-condition cars are harder — we treat the alarm-chance scaling as single-sourced until a third write-up lands.

Keys beat all of it: glove boxes, ignition, visors, nearby corpses, and the house that owns the driveway. A key start is quiet; a hotwire is a noise event with a skill check attached.

What Changed About Fuel in Build 42? Cross-Verified

Vehicles run inside B42’s new fluid rules, and the two guides agree on every load-bearing point:

  • Siphoning requires a hose — carry one or you are pouring from cans.
  • Gas pumps need power — stations work until shutoff; after that, powering the pumps with a generator keeps the underground reserve accessible.
  • Gasoline evaporates from open containers — sealed cans, stored ventilated and outdoors.
  • Plan routes like food — a thirsty sports car between towns is a trap; keep a can in the trunk, not only at base. The full fuel-system picture is in the water collection guide’s pump discussion.

Driving itself stays a noise magnet: engine sound pulls zombies, hitting them damages the car over time, and both guides’ rule is identical — use cars to leave, not to mow, and kill the engine when parked or the battery dies overnight.

Why Are Work Vans the Real Loot Update? Deep-Tested

The official Build 42.20 feature overview is the anchor: “business-related work vans — each loaded with its own special and specific loot,” plus location-specific liveries. Both guides then catalogue the same pattern from different angles — trade-branded step vans, Valulines and pickups carrying the tools of their business (blacksmith, masonry, butchers, mobile libraries, craft supplies), with per-container loot tables unpublished. The shared practical rule falls out of it: open every weird business vehicle you see — a florist step van is a container roll, not scenery.

Trailers move the same economy: general and covered trailers for stone, metal and logs, livestock trailers for moving animals by road. Both guides agree towing exists and behaves as a system with its own limits; the one-source specifics (exact trunk capacities, trailer detach thresholds, 42.21 driving fixes) are held pending a third written source rather than printed here.

Sources & Verification

Source Type Sections Used
projectzomboid.wiki — Vehicles, Driving & Hotwire Fan-made guide (updated 2026-08-29) Hotwire gate, dash checks, fuel rules, noise discipline, repair XP
build42guide.wiki — Build 42 Vehicles Community guide (checked 2026-09-27 vs 42.20/42.21) Work-van roster, trailers, fluid rules, towing
Official Build 42.20 Features Overview Developer blog (2026-07-28) Work-van loot quote, liveries anchor

Single-source numbers (capacities, detach behavior, 42.21 patch items) are named as pending and not asserted.

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