---
title: "WD Truck and Trailer Care — Clean Truck Check, San Antonio, TX"
description: "WD Truck and Trailer Care in San Antonio, TX is on CARB's Clean Truck Check tester list. Offers mobile testing, OBD testing, smoke opacity (non-OBD) testing…"
url: "https://ctcfinder.com/tester/wd-truck-and-trailer-care-san-antonio-tx/"
updated: "2026-11-01"
publisher: "CTC Finder (independent directory, not affiliated with CARB)"
---

# WD Truck and Trailer Care

Clean Truck Check tester in San Antonio, TX.

> CTC Finder is an independent directory, not affiliated with CARB. Tester data: CARB Clean Truck Check public tester list, last checked November 1, 2026. Confirm services, hours and prices with the tester.

| Field | Value |
|---|---|
| Location | 7210 I-10 Frontage Rd, San Antonio, TX 78219 |
| Phone | (726) 888-2207 |
| Mobile testing | Yes |
| OBD testing | Yes |
| Smoke opacity (non-OBD) | Yes |
| Motorhomes | Yes |
| Credentialed testers | 1 |
| Last verified | 2026-11-01 |

## Which trucks WD Truck and Trailer Care can test

| Your vehicle | Test required | This tester |
|---|---|---|
| Diesel, model year 2013 or newer | OBD scan | Yes |
| Alternative fuel (natural gas, propane), 2018 or newer | OBD scan | Yes |
| Diesel, model year 2012 or older (no OBD) | Smoke opacity test (SAE J1667) plus visual inspection | Yes |
| California-registered motorhome | Same test as above by engine year, once a year | Yes |

## Clean Truck Check testers in Texas

WD Truck and Trailer Care is one of 46 testing businesses in Texas on CARB's public tester list. 37 of them offer mobile testing and 18 do smoke opacity tests.

## When your truck is due

Most trucks test twice a year, on a schedule tied to the DMV registration expiration date. CARB says OBD trucks move to four tests a year beginning October 2027. California-registered (non-commercial) motorhomes and agricultural vehicles test once a year. See the [deadline guide](https://ctcfinder.com/guide/deadlines-2026-2027/). You can test up to 90 days before a deadline. Free email reminders: https://ctcfinder.com/reminders/

## Frequently asked questions

### Does WD Truck and Trailer Care offer mobile Clean Truck Check testing?

Yes. WD Truck and Trailer Care says on CARB's tester list that it offers mobile testing, so it can come to your yard or job site. Ask about a trip fee when you call.

### Can WD Truck and Trailer Care test a 2012 or older diesel truck?

Yes. WD Truck and Trailer Care lists smoke opacity testing, the test CARB requires for diesel trucks of model year 2012 and older (no OBD). See [OBD vs smoke opacity](https://ctcfinder.com/guide/obd-vs-smoke-opacity-test/).

### How much does WD Truck and Trailer Care charge for a Clean Truck Check?

WD Truck and Trailer Care has not published prices with us; call (726) 888-2207 for a quote. Published California prices are usually $50–$135 per vehicle for an OBD test and $190–$200 for a smoke opacity test, plus CARB's annual fee ($32.13 in 2026). See the [cost guide](https://ctcfinder.com/guide/cost/).

### Is WD Truck and Trailer Care a CARB-credentialed tester?

WD Truck and Trailer Care appears on CARB's public Clean Truck Check tester list, last checked November 1, 2026. Only credentialed testers can submit results to CARB; after the test, confirm the passing result shows for your vehicle in CTC-VIS.

## Other testers nearby

- **[AIRLIMITS - San Antonio](https://ctcfinder.com/tester/airlimits-san-antonio-windcrest-tx/)** — Windcrest, TX 78218 — (800) 788-5241 — 4 mi. Services: mobile testing, OBD testing, smoke opacity (non-OBD) testing, motorhome testing.
- **[Central Coast Transport, INC](https://ctcfinder.com/tester/central-coast-transport-inc-converse-tx/)** — 1823 FM 1516 N, Converse, TX 78109 — (210) 612-8056 — 6 mi. Services: OBD testing.
- **[GTC Services, LLC](https://ctcfinder.com/tester/gtc-services-llc-converse-tx/)** — 12930 Interstate 10 E, Converse, TX 78109 — (210) 648-0316 — 6 mi. Services: mobile testing, OBD testing.
- **[Appleton Moving](https://ctcfinder.com/tester/appleton-moving-san-antonio-tx/)** — San Antonio, TX 78217 — (210) 852-6169 — 7 mi. Services: mobile testing, OBD testing, motorhome testing.
- **[SMG Ventures](https://ctcfinder.com/tester/smg-ventures-san-antonio-tx/)** — San Antonio, TX 78224 — (210) 943-7030 — 13 mi. Services: mobile testing, OBD testing, motorhome testing.