---
title: "Exfil Mobile Diesel Solutions Inc — Clean Truck Check, Claremont, CA"
description: "Exfil Mobile Diesel Solutions Inc in Claremont, CA is on CARB's Clean Truck Check tester list. Offers mobile testing, OBD testing, smoke opacity (non-OBD)…"
url: "https://ctcfinder.com/tester/exfil-mobile-diesel-solutions-inc-claremont/"
updated: "2026-11-01"
publisher: "CTC Finder (independent directory, not affiliated with CARB)"
---

# Exfil Mobile Diesel Solutions Inc

Clean Truck Check tester in Claremont, CA (Los Angeles 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 | 4224 Lynoak Drive, Claremont, CA 91711 |
| County | Los Angeles County |
| Phone | (909) 229-2258 |
| Mobile testing | Yes |
| OBD testing | Yes |
| Smoke opacity (non-OBD) | Yes |
| Motorhomes | Yes |
| Credentialed testers | 1 |
| Last verified | 2026-11-01 |

## Which trucks Exfil Mobile Diesel Solutions Inc 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 Los Angeles County

Exfil Mobile Diesel Solutions Inc is one of 516 testing businesses in Los Angeles County on CARB's public tester list. 465 of them offer mobile testing and 190 do smoke opacity tests. In Claremont itself there are 4 listed businesses, 4 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 Exfil Mobile Diesel Solutions Inc offer mobile Clean Truck Check testing?

Yes. Exfil Mobile Diesel Solutions Inc 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 Exfil Mobile Diesel Solutions Inc test a 2012 or older diesel truck?

Yes. Exfil Mobile Diesel Solutions Inc 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 Exfil Mobile Diesel Solutions Inc charge for a Clean Truck Check?

Exfil Mobile Diesel Solutions Inc has not published prices with us; call (909) 229-2258 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 Exfil Mobile Diesel Solutions Inc a CARB-credentialed tester?

Exfil Mobile Diesel Solutions Inc 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

- **[Fleet Check Mobile](https://ctcfinder.com/tester/fleet-check-mobile-claremont/)** — 272 Carnegie Ave, Claremont, CA 91711 — (909) 921-6533 — 1 mi. Services: mobile testing, OBD testing, motorhome testing.
- **[Marcial Orozco](https://ctcfinder.com/tester/marcial-orozco-claremont/)** — Claremont, CA 91711 — (626) 377-1669 — 1 mi. Services: mobile testing, OBD testing, motorhome testing.
- **[Professional Elite Fleet services](https://ctcfinder.com/tester/professional-elite-fleet-services-claremont/)** — 613 Converse Ave, Claremont, CA 91711 — (661) 547-9926 — 1 mi. Services: mobile testing, OBD testing, motorhome testing.
- **[Preventive Mobile Inc](https://ctcfinder.com/tester/preventive-mobile-inc-la-verne/)** — 1395 Fairplex Dr A8, La Verne, CA 91750 — (626) 280-5038 — 3 mi. Services: mobile testing, OBD testing, smoke opacity (non-OBD) testing, motorhome testing.
- **[RigCheckr](https://ctcfinder.com/tester/rigcheckr-la-verne/)** — 2570 Mono Circle, La Verne, CA 91750 — (702) 275-2044 — 3 mi. Services: mobile testing, OBD testing.
- **[V&A’s Clean Truck Check](https://ctcfinder.com/tester/v-and-as-clean-truck-check-la-verne/)** — 1111 Gladstone St, La Verne, CA 91750 — (909) 240-2770 — 3 mi. Services: mobile testing, OBD testing, motorhome testing.