---
title: "Mobi Mech Diesel Tech — Clean Truck Check, Oakland, CA"
description: "Mobi Mech Diesel Tech in Oakland, CA is on CARB's Clean Truck Check tester list. Offers mobile testing, OBD testing. Phone, address and nearby testers."
url: "https://ctcfinder.com/tester/mobi-mech-diesel-tech-oakland/"
updated: "2026-11-01"
publisher: "CTC Finder (independent directory, not affiliated with CARB)"
---

# Mobi Mech Diesel Tech

Clean Truck Check tester in Oakland, CA (Alameda 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 | 1122 Wood St, Oakland, CA 94607 |
| County | Alameda County |
| Phone | (510) 708-4040 |
| Mobile testing | Yes |
| OBD testing | Yes |
| Smoke opacity (non-OBD) | No |
| Motorhomes | No |
| Credentialed testers | 1 |
| Last verified | 2026-11-01 |

## Which trucks Mobi Mech Diesel Tech 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 | Not listed |

For a 2012 or older diesel, the nearest listed tester with smoke opacity testing is SF Enterprises Tester in Oakland, about 1 mile away. [See listing](https://ctcfinder.com/tester/sf-enterprises-tester-oakland/).

## Clean Truck Check testers in Alameda County

Mobi Mech Diesel Tech is one of 85 testing businesses in Alameda County on CARB's public tester list. 79 of them offer mobile testing and 37 do smoke opacity tests. In Oakland itself there are 15 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 Mobi Mech Diesel Tech offer mobile Clean Truck Check testing?

Yes. Mobi Mech Diesel Tech 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 Mobi Mech Diesel Tech test a 2012 or older diesel truck?

Mobi Mech Diesel Tech does not list smoke opacity testing, which older non-OBD diesel trucks need. The nearest listed tester that does is [SF Enterprises Tester](https://ctcfinder.com/tester/sf-enterprises-tester-oakland/) (about 1 mile). Trucks from 2013 on get an OBD scan instead.

### How much does Mobi Mech Diesel Tech charge for a Clean Truck Check?

Mobi Mech Diesel Tech has not published prices with us; call (510) 708-4040 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 Mobi Mech Diesel Tech a CARB-credentialed tester?

Mobi Mech Diesel Tech 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

- **[Alfred Saroni IV](https://ctcfinder.com/tester/alfred-saroni-iv-oakland/)** — Oakland, CA 94607 — (510) 336-4015 — 1 mi. Services: mobile testing, OBD testing.
- **[RichCityAutoWorks](https://ctcfinder.com/tester/richcityautoworks-oakland/)** — 2548 7th St, Oakland, CA 94607 — (209) 699-2618 — 1 mi. Services: mobile testing, OBD testing.
- **[SF Enterprises Tester](https://ctcfinder.com/tester/sf-enterprises-tester-oakland/)** — 2525 MANDELA PARKWAY, Oakland, CA 94607 — (415) 720-0457 — 1 mi. Services: mobile testing, OBD testing, smoke opacity (non-OBD) testing, motorhome testing.
- **[California Fleet Compliance](https://ctcfinder.com/tester/california-fleet-compliance-oakland/)** — 717 26th St, Oakland, CA 94612 — (341) 213-8932 — 2 mi. Services: mobile testing, OBD testing, smoke opacity (non-OBD) testing.
- **[Mobile Golden State Emissions Testing Oakland](https://ctcfinder.com/tester/mobile-golden-state-emissions-testing-oakland-oakland/)** — 1940 Webster St, Oakland, CA 94612 — (925) 354-4370 — 2 mi. Services: mobile testing, OBD testing, smoke opacity (non-OBD) testing, motorhome testing.
- **[Pravikesh Singh](https://ctcfinder.com/tester/pravikesh-singh-emeryville/)** — Emeryville, CA 94608 — (510) 621-8314 — 2 mi. Services: mobile testing, OBD testing.