Carlos Herrera · Forty years under the hood · The Mexican Way

Repair Any Car

Forty years under the hood, written down: thirty-five jobs you can do in your own driveway — oil, brakes, battery, plugs, filters — what each one costs at a shop and exactly how to do it. Then what every noise, smell and warning light is telling you. Five books, 931 pages, and the printable Glovebox Kit. One time, $27 — less than one visit to the shop.

Secure checkout via GumroadVisa · Mastercard · Apple Pay · Google Pay
4.7/5 customer rating
Instant download · 5 PDF books, 931 pages + a printable card set · read them on your phone or print them for the shelf
Repair Any Car, Volume 1 — The Driveway Jobs Repair Any Car, Volume 2 — What's It Telling You Repair Any Car, Volume 3 — The Parts-Counter Truth
35
jobs you can do yourself, start to finish
931
pages, step by step, in plain English
30 days
no-questions money-back guarantee
$0 / mo
one-time price, no subscription
I.

The Offer

Five books, the printable Glovebox Kit, and lifetime updates — for one honest price.

$27$49
Save $22 · 45% off
One time · no subscription
Your offer timer: 01:00:00
What you get today
Volume 1 — The Driveway Jobs (373 pages · 35 jobs, start to finish)
✓
Volume 2 — What's It Telling You (298 pages · diagnosis by noise, smell, leak and light)
✓
Volume 3 — The Parts-Counter Truth (115 pages · what work costs, and what to refuse)
✓
Bonus — The Three-Dollar Garage (62 pages of $3 fixes from my tío's shop)
✓
Bonus — The Half-Million-Mile Plan (68 pages: the habits that outlast the payments)
✓
The Glovebox Kit (cut-out cards: the sixteen sentences, the prices, the logs)
✓
Lifetime updates (every future edition, free)
✓
Everything above$27
Get the Library — $27 $49
Instant download · pay once · yours forever
Secure checkout via GumroadVisa · Mastercard · Apple Pay · Google Pay
Not ready to buy

Then take the card for free.

One page: the sixteen things a shop will try to sell you, and the exact sentence that ends each one. Print it, fold it once, keep it in your wallet. No charge, and no catch — if it saves you eighty dollars on the next visit, you will know whether the books are worth $27.

Send Me the Free Card
I email you the PDF. That is all it is.
II.

The Math

The expensive thing was never the repair. It's what a shop bill talks you into next.

The Next One · every month
The average new car payment$765/mo
One year of it$9,180
Five more years of it$45,900
And the month it's paid offthey sell you another
What replacing it costs$45,900
This One · once
The whole library, 931 pages$27
Jack, stands, chocks & socket set$210
Oil, filters, pads, a batteryparts only
The tools, ten years from nowstill yours
One time$237

Nobody keeps a car forever. But every year you keep this one is a year you don't start that — and that is what these books are actually for. The expensive thing was never the repair. It's the replacement.

Average new-car payment $765/month, Experian Q2 2026. Figures are illustrative ranges and vary by car, region, and choices. The books are educational — not a guarantee of any outcome or saving. Some jobs belong at a shop, and the books say which ones. Always follow your owner's manual.

Get the Library — $27 $49
🔒 30-day money-back guarantee · your offer timer:
III.

What's Inside

Five books, one plan — in the order you should do it.

Volume 1 — The Driveway Jobs
Volume 1 · 373 pages

The Driveway Jobs

Thirty-five jobs you can do in your own driveway — what each one costs at a shop, and exactly how to do it.
  • The oil change they bill at $90 — forty minutes on a set of ramps
  • The engine air filter and the PCV valve — $25 in parts, twenty minutes
  • Brakes: how to read your own, and who should never attempt the job
  • The $260 battery — twenty minutes and one wrench
  • Bulbs, fuses, and the $2 part behind a $150 diagnostic fee
Volume 2 — What's It Telling You
Volume 2 · 298 pages

What's It Telling You

Look up the noise, the smell, the puddle or the light — and know roughly what it is before you pay anyone to tell you.
  • Every noise a car makes, by when it happens and what it means
  • The cardboard under the car: reading a leak by colour and position
  • Every warning lamp in plain English — and the one that means stop now
  • What it means when it shakes, pulls, hesitates or slips
  • How the engine actually works — the part nobody ever explained to you
Volume 3 — The Parts-Counter Truth
Volume 3 · 115 pages

The Parts-Counter Truth

What work honestly costs, and the exact words that end an upsell.
  • Sixty-odd jobs with honest price ranges, grouped by system
  • The sixteen things they'll try to sell you — and the sentence that ends each one
  • How to read the invoice: book time, shop rate, and the "shop supplies" line
  • The additives worth money — and the 90% that are snake oil
  • When to stop and pay a pro — the honest line

Plus two bonus books — the $3 fixes from my tío's shop, and the half-million-mile plan — and the Glovebox Kit: every checklist, maintenance log and cut-out shop-visit card, ready to print.

Get the Library — $27 $49
🔒 30-day money-back guarantee · your offer timer:

What readers write

Secure checkout via GumroadVisa · Mastercard · Apple Pay · Google Pay
IV.

Meet Carlos Herrera

Forty years under the hood — fifteen in his tío's shop, twenty-five running his own.

Carlos Herrera in his garage
Carlos, in the shop

I was fifteen when my tío put a wrench in my hand and told me the first rule of his shop: look before you buy. I spent fifteen years in that little garage learning the tricks that kept a whole neighborhood's cars running on pocket change — and twenty-five more running my own shop, seeing what the dealers charged for the same jobs.

I've watched a three-dollar fix save a four-thousand-dollar repair. And I've watched good, careful people pay for engine flushes their car never needed, additives that do nothing, and diagnostic fees for a gas cap that wasn't screwed on tight. The shop isn't evil — it's just got a menu, and nobody ever taught you how to read it.

My rule for every page in these books is the one I gave every customer for forty years: does it actually work, and is it worth the money? If a job is cheap and safe to do yourself, I show you exactly how, the way my tío showed me. And when a job truly belongs at a shop, I say so — and tell you what a fair price sounds like. That's the whole reason I wrote these books.

30-day, no-questions guarantee

Do one job out of Volume 1. If it doesn't pay for the whole library, I'll give it back.

Take a full 30 days. Find your own blown fuse out of Volume 1 — the two-dollar part they charge a hundred and fifty to go looking for. Carry the wallet card into one shop visit. If the books haven't earned their keep by then, email me and I'll refund every cent — no questions asked — and you keep them. That's my handshake on it.

V.

Questions Buyers Ask

I've never fixed anything on a car. Is this for me?
Volume 1 assumes you have never opened your own hood. Every job starts with what a shop charges and what you need to buy, then numbered steps, then a way to check your own work like a second mechanic would. Start with the fuse box — Volume 1 walks you through finding a blown fuse, which is the two-dollar part a shop charges a hundred and fifty dollars to go looking for.
I'm not getting under a car at my age. Can I still use this?
Most of the library never puts you under one. Filters, battery, bulbs, fuses, plugs, wipers, tire pressure and every page of Volume 2 happen standing up. Volume 1 opens with the jack-and-stands chapter and it is blunt: if getting down onto the floor and back up is a project, use ramps for the oil and let a shop have the rest. I say plainly which jobs those are, and I would rather you paid somebody than got hurt.
Does it cover my car specifically?
Not by model, and I won't pretend otherwise. You will not find a torque figure or an oil capacity in here, because those change from car to car and taking them from me instead of your own manual is how people damage things. What you get is what to do, in what order, what it should honestly cost, and where the job goes wrong — and that part is the same on nearly everything with four wheels.
I don't own any tools. What do I actually need?
There is a whole chapter on that, with prices. Around $250 covers a jack, stands, chocks, a socket set and a torque wrench — and one front brake job pays for all of it. Plenty of the jobs in here need nothing but your hands and a rag.
How do I get the books, and how fast?
Instant download, about 60 seconds after checkout. PDF — read them on any phone, tablet or computer, and print whatever you want for the garage wall. No apps, no accounts, no subscription.
What if it's not for me?
You have a full 30 days. If the books don't earn their keep, email me and I refund every cent, no questions asked — and you keep the books. All the risk is on my side of the fence.
Get the Library — $27 $49
🔒 30-day money-back guarantee · your offer timer:

Be the driver the shop can't upsell

$27 once. Instant access. 30-day money-back guarantee, no questions asked. Five books, the Glovebox Kit, and every future edition — yours for good.

Get the Library — $27 $49
Get the Library — $27 $49