---
title: "Gray and Sons Fleet Inspections — Clean Truck Check, Temecula, CA"
description: "Gray and Sons Fleet Inspections in Temecula, CA is on CARB's Clean Truck Check tester list. Offers mobile testing, smoke opacity (non-OBD) testing, motorhome…"
url: "https://ctcfinder.com/tester/gray-and-sons-fleet-inspections-temecula/"
updated: "2026-11-01"
publisher: "CTC Finder (independent directory, not affiliated with CARB)"
---

# Gray and Sons Fleet Inspections

Clean Truck Check tester in Temecula, 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 | 43446 Calle Carabana, Temecula, CA 92592 |
| County | Riverside County |
| Phone | (951) 515-6804 |
| Mobile testing | Yes |
| OBD testing | No |
| Smoke opacity (non-OBD) | Yes |
| Motorhomes | Yes |
| Credentialed testers | 1 |
| Last verified | 2026-11-01 |

## Which trucks Gray and Sons Fleet Inspections can test

| Your vehicle | Test required | This tester |
|---|---|---|
| Diesel, model year 2013 or newer | OBD scan | Not listed |
| Alternative fuel (natural gas, propane), 2018 or newer | OBD scan | Not listed |
| 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 Riverside County

Gray and Sons Fleet Inspections 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 Temecula itself there are 18 listed businesses, 15 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 Gray and Sons Fleet Inspections offer mobile Clean Truck Check testing?

Yes. Gray and Sons Fleet Inspections 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 Gray and Sons Fleet Inspections test a 2012 or older diesel truck?

Yes. Gray and Sons Fleet Inspections 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 Gray and Sons Fleet Inspections charge for a Clean Truck Check?

Gray and Sons Fleet Inspections has not published prices with us; call (951) 515-6804 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 Gray and Sons Fleet Inspections a CARB-credentialed tester?

Gray and Sons Fleet Inspections 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

- **[DR CTC Mobile Compliance](https://ctcfinder.com/tester/dr-ctc-mobile-compliance-temecula/)** — 31805 Temecula Pkwy Suite D-7, Temecula, CA 92592 — (951) 795-5522 — 1 mi. Services: mobile testing, OBD testing, motorhome testing.
- **[Dustin Owen](https://ctcfinder.com/tester/dustin-owen-temecula/)** — Temecula, CA 92592 — (951) 595-0372 — 1 mi. Services: OBD testing.
- **[G 2 G OTR](https://ctcfinder.com/tester/g-2-g-otr-temecula/)** — 43446 Calle Carabana, Temecula, CA 92592 — (951) 762-6750 — 1 mi. Services: mobile testing, OBD testing, smoke opacity (non-OBD) testing, motorhome testing.
- **[GR Clean Truck Check Mobile LLC](https://ctcfinder.com/tester/gr-clean-truck-check-mobile-llc-temecula/)** — 29744 Indigo Pl, Temecula, CA 92592 — (951) 813-1970 — 1 mi. Services: mobile testing, OBD testing.
- **[MRC Heavy Equip. Xperts](https://ctcfinder.com/tester/mrc-heavy-equip-xperts-temecula/)** — Temecula, CA 92592 — (909) 634-4061 — 1 mi. Services: mobile testing, OBD testing, motorhome testing.
- **[Smog Brothers HDI/M](https://ctcfinder.com/tester/smog-brothers-hdi-m-temecula/)** — 42937 Virgo Ct, Temecula, CA 92592 — (951) 348-0397 — 1 mi. Services: mobile testing, OBD testing, smoke opacity (non-OBD) testing, motorhome testing.