For anyone who cleans their own car
I'm Trevor. I spent 41 years getting cars ready for sale, from a wash bay at 17 to running prep on a dealer lot. Watch this first:
The part nobody tells you
That's where people get into trouble. They see a mark, reach for the strongest cleaner in the cupboard, and start rubbing before they know what the surface is. The car looks clean for an hour. Then:
Trevor's verdicts on the usual shortcuts:
Shortcuts save five minutes and can cost a seal, a trim panel, or a clear view of the road.
The fix-it handbook
Every chapter starts with a problem you can see on your own car, explains why the obvious fix fails, then gives the least aggressive method that actually works.
| The problem | The usual fix | What Trevor does instead |
|---|---|---|
| Hazy windshield at night | More glass cleaner, wiped harder | Most haze is inside. Two towels and a 50/50 mix of 70% alcohol and distilled water |
| Wheels still brown in the spokes | Stronger cleaner on hot wheels | Cool wheels, the mildest cleaner first, and a brush that never touches the paint |
| Swirls on dark paint | Another round of polish | Stop making the next mark: dirty tools stay below the paint line |
| Wax gone after two washes | Wax it again, thicker | Road film is often hiding the protection. Clean properly, then a thin layer |
| A seat stain that comes back | Scrub it wetter | Keep the solution near the surface, blot, and dry below the top layer |
| Trim that's turned grey | Glossy dressing over the top | Clean it first; the plastic's condition decides the treatment |
Methods from the book. Always read the label and test a hidden spot first.
What's inside · 14 chapters · 165 pages
Written for beginners, with 47 illustrated guides and plain explanations of what is dirt and what is damage.
Identify the mark before choosing the method, and use the least aggressive one that works.
Towels, brushes and a few simple cleaners. What to buy, and what not to buy on a tight budget.
Dish soap, household cleaners, steam and pressure washers: where each belongs, and where it doesn't.
The inside haze, the two-towel rule, and wipers that stop smearing.
Where the dirt hides behind the spokes, and the cleaner strength that won't stain the finish.
How swirls get there, how to inspect dry paint, and when a mark is too deep to polish.
Why protection seems to vanish, and an application routine that actually lasts.
Cloth, coated leather and vinyl, and why stains wick back up overnight.
Trace the odor to where the moisture is hiding. Fragrance is not a repair.
Why plastic fades in bands, and what to do before reaching for a restorer.
Start with the lens, not the polish, and know when to stop.
The low-water method, and what never to blast with a hose.
Where a buyer's eyes, hands and nose go first, and the short prep that matters most.
The order that stops clean areas being spoiled by dirty work.
Who it's for
One towel loosens the film; the dry one removes it.
From the author
A few of the stories behind the methods:
I once watched a buyer walk around a well-polished sedan and stop at the front wheel. The face was grey, the lug holes brown. He didn't mention the expensive paint work. He said the car looked neglected. Clean wheel edges changed his mind faster than another hour on the hood.
I've watched sellers spend an hour dressing rubber and five minutes leaving fingerprints on the glass. That's cleaning in the wrong order. A buyer is deciding whether the car has been cared for, and they start with what they can see, touch and smell.
In the preparation bays I didn't need a cabinet of promises. I needed towels that did their job. A small kit used correctly will outperform a large kit used without a plan, on dealer lots, auction cars and ordinary driveways alike.
I used plenty of shortcuts in 41 years. The useful ones were narrow and controlled. I used dish soap once, when there was nothing else. I never treated it as a car-care system.
Look inside
No sponsors and no affiliate links, so every recommendation is simply what works.
About the author
I spent 41 years preparing cars for sale. I started in a car wash bay at 17 and finished my career running vehicle preparation on a dealer lot. On the side I prepared more than 30,000 auction cars.
The job was always the same: make a tired, dirty car presentable without wasting money or damaging the finish. That meant knowing the difference between dirt that can be cleaned and damage that has to be repaired.
I'm retired now. I don't accept sponsors or use affiliate links. This handbook is the least aggressive method that works, explained for beginners.
Get the handbook today
Fix the problems you can actually see, without damaging the car. $25, once.
The Practical Car Care Fix-It Handbook
Email us within 30 days of purchase and you'll get a full refund. No forms and no awkward questions.
Questions
No. It's a digital PDF (165 pages), so there's nothing to ship and you can start reading within a minute of paying. You can print the pages you use most.
Right after payment you're taken to the download page, and we also email you a link at the address you used at checkout. If the email doesn't arrive, check your spam folder, or write to contact@trevor-cars.com.
Yes. It's about surfaces every car has: glass, wheels, paint, trim, seats, carpets, headlights and the engine bay. It isn't a model-specific manual.
No. Make Your Car Worth More is a complete care and preparation routine. Stop Cleaning Your Car Wrong is a fix-it handbook: one problem per chapter, why the usual fix fails, and what actually works.
No. Trevor recommends a small kit and a few simple cleaners, and explains what not to buy. He takes no sponsors, so nothing in the book is there to sell you a product.
No. You pay $25 once. There are no recurring charges.
The price is $25 USD. Buyers in the EU, UK and a few other countries are charged VAT at their local rate on top, and it is shown in the checkout before you pay. US buyers pay $25.
Email contact@trevor-cars.com within 30 days of purchase and you'll get a full refund. See the refund policy.
Trevor Ashby