---
title: "MCF — Clean Truck Check, Thermal, CA | CTC Finder"
description: "MCF in Thermal, CA is on CARB's Clean Truck Check tester list. Offers mobile testing, OBD testing, motorhome testing. Phone, address and nearby testers."
url: "https://ctcfinder.com/tester/mcf-thermal/"
updated: "2026-11-01"
publisher: "CTC Finder (independent directory, not affiliated with CARB)"
---

# MCF

Clean Truck Check tester in Thermal, CA (Riverside County).

> 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 | 1244 Penelope Ave, Thermal, CA 92274 |
| County | Riverside County |
| Phone | (760) 625-9256 |
| Mobile testing | Yes |
| OBD testing | Yes |
| Smoke opacity (non-OBD) | No |
| Motorhomes | Yes |
| Credentialed testers | 1 |
| Last verified | 2026-11-01 |

## Which trucks MCF 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 | Not listed |
| California-registered motorhome | Same test as above by engine year, once a year | Yes |

For a 2012 or older diesel, the nearest listed tester with smoke opacity testing is Avc Farm and Auto Repair in Thermal, about 1 mile away. [See listing](https://ctcfinder.com/tester/avc-farm-and-auto-repair-thermal/).

## Clean Truck Check testers in Riverside County

MCF is one of 251 testing businesses in Riverside County on CARB's public tester list. 233 of them offer mobile testing and 102 do smoke opacity tests. In Thermal itself there are 3 listed businesses, 3 of them mobile.

## 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 MCF offer mobile Clean Truck Check testing?

Yes. MCF 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 MCF test a 2012 or older diesel truck?

MCF does not list smoke opacity testing, which older non-OBD diesel trucks need. The nearest listed tester that does is [Avc Farm and Auto Repair](https://ctcfinder.com/tester/avc-farm-and-auto-repair-thermal/) (about 1 mile). Trucks from 2013 on get an OBD scan instead.

### How much does MCF charge for a Clean Truck Check?

MCF has not published prices with us; call (760) 625-9256 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 MCF a CARB-credentialed tester?

MCF 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

- **[Avc Farm and Auto Repair](https://ctcfinder.com/tester/avc-farm-and-auto-repair-thermal/)** — 66808 Harrison St, Thermal, CA 92274 — (760) 296-4565 — 1 mi. Services: mobile testing, OBD testing, smoke opacity (non-OBD) testing, motorhome testing.
- **[Thermal Truck and RV](https://ctcfinder.com/tester/thermal-truck-and-rv-thermal/)** — 57100 Desert Cactus Dr, Thermal, CA 92274 — (760) 399-9773 — 1 mi. Services: mobile testing, OBD testing, motorhome testing.
- **[CV Smog Inc](https://ctcfinder.com/tester/cv-smog-inc-coachella/)** — 85900 Grapefruit Blvd, Coachella, CA 92236 — (760) 275-5984 — 16 mi. Services: mobile testing, OBD testing, motorhome testing.
- **[Drc Custom Fabrication](https://ctcfinder.com/tester/drc-custom-fabrication-coachella/)** — Coachella, CA 92236 — (760) 610-3807 — 16 mi. Services: mobile testing, OBD testing, smoke opacity (non-OBD) testing, motorhome testing.
- **[Jmj truck & tire repair inc](https://ctcfinder.com/tester/jmj-truck-and-tire-repair-inc-coachella/)** — 84139 Laguna Ln, Coachella, CA 92236 — (442) 234-3187 — 16 mi. Services: mobile testing, OBD testing, smoke opacity (non-OBD) testing, motorhome testing.
- **[Jose Garcia Contreras](https://ctcfinder.com/tester/jose-garcia-contreras-coachella/)** — Coachella, CA 92236 — (424) 559-8495 — 16 mi. Services: mobile testing, OBD testing, motorhome testing.