Mobile mechanics Operations Questions

The questions that recur in mobile mechanics share one shape: the driveway removes the overhead and adds the drive. Several ask what the real hourly rate is by zip code once drive time is honest, and why scaling to two techs halves the owner's income. Others ask what happens at the tow-and-refer moment. The answers below measure route density before convenience.

• Does our no-shop-overhead advantage survive honest drive-time accounting. What is our real hourly rate by zip?

  Compute it: billable hours ÷ (work + drive + parts runs) per zip cluster. Mobile models win on dense routes and lose on sprawl. Your real rate by zip will show a map of where you are a business and where you are a charity. Price or zone accordingly.

  §10 routing/density, §1.3 true costing, §4.2 utilization

• Why do we decline the jobs (transmissions, alignments) our best customers eventually need, sending them to shops that keep them?

  Because your capability boundary becomes their switching point: the customer who leaves for a transmission job experiences a shop that does everything, and never returns. Counter: formal referral partnerships with revenue share or reciprocal arrangements. Lose the job, keep the customer.

  §11.2 network strategy, §2.3 retention, §1.1 scope decisions

• Customers approve work by text at higher rates than in person. What pressure does the driveway remove?

  Social pressure: in person, declining feels like confrontation with the person standing there, so customers stall ("let me think"). By text, the decision is private and quick. Text also creates documentation. Make text-with-photos the standard approval channel. It converts better and records everything.

  §13 behavioral, §8.2 blueprint, §12

• When weather cancels a day, revenue vanishes but goodwill holds. Which does our pricing assume?

  Pricing assumes full availability. You are absorbing weather variance as uncompensated downtime. Options: weather-day rescheduling priority (retention), a modest margin premium as weather insurance, or indoor-work partnerships for bad days. The variance is real. Price it or buffer it.

  A4 buffer choice, §11.4 weather risk, §2.3

• We cap at four jobs daily while shop techs do eight. How much is physics vs. scheduling discipline?

  Measure the day: drive time, parts runs, and setup/tear-down per site are physics (2 to 3 jobs' worth). The rest, gaps, unplanned supply runs, poor sequencing, is discipline. Tight routing and van-stock discipline can buy job five. Job eight requires a shop.

  §4.2 capacity decomposition, §10 routing, §5.1 van stock

• Why does scaling to two techs halve our own income, which growth assumption was wrong?

  The assumption that revenue scales with techs while you keep your billable role: adding a tech converts you from producer to manager/dispatcher (unbillable), and their margin must cover their wage plus your lost production. The fix: either stay boutique-solo or hire past the valley (3+ techs with you purely managing).

  §1.1 StructuralDecisions, A3, §1.3

• Why do fleet accounts adopt fastest and churn fastest. What contract structure would hold them?

  They adopt fast because mobile solves their downtime problem instantly. Churn fast because procurement re-bids annually and loyalty is thin. Hold them with SLA-based contracts (response-time guarantees, preventive schedules, reporting) that create switching costs and documented value. Not rate loyalty.

  §11.2 contract design, §1.1 OrderWinner, §6.1

• Customers love the convenience, then book their next service at a shop. What does repeat-rate data say we are selling?

  A trial: they used you once for the emergency/novelty, then defaulted to the shop habit (or a shop captured them via a declined job). The repeat data says convenience alone does not retain. You need the follow-up system (service reminders, maintenance plans) that shops run and you skipped.

  §2.3 retention mechanics, §12 CRM, §13 habit

• When we cannot fix it on-site, why does the tow-and-refer moment lose the customer. Whose shop do we hand them to?

  Whoever answers your phone that day. An unmanaged handoff to a random shop that then owns the relationship. Formalize: one partner shop, a named contact, a warm handoff ("Sarah at XYZ expects you"), and reciprocal terms. The handoff is a designed Activity or a customer leak.

  D5, §8.2 blueprint, §11.2 partnerships

• Does pricing reflect route density or premium convenience, which model breaks first at $5 gas?

  If pricing is convenience-premium-based, gas barely matters (fuel is small share), if it is density-thin pricing, $5 gas destroys the sprawl zones. The model breaks where drive cost meets thin tickets. Stress-test by zip: the outlying zones need minimums, zone fees, or abandonment.

  §11.4 cost shock, §10 density, §2.3

How these answers work

Each answer names the operational mechanism the question is circling, then states the directive that follows from the ontology in Part One of the book. Bracketed citations point to the ontology sections and axioms that produced the answer. Figures inside the questions describe each stipulated scenario. They are not industry benchmarks.

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