---
title: "Dion Ramos — Clean Truck Check, Lomita, CA | CTC Finder"
description: "Dion Ramos in Lomita, 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/dion-ramos-lomita/"
updated: "2026-11-01"
publisher: "CTC Finder (independent directory, not affiliated with CARB)"
---

# Dion Ramos

Clean Truck Check tester in Lomita, 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 | Lomita, CA 90717 |
| County | Los Angeles County |
| Phone | (818) 770-8884 |
| Mobile testing | Yes |
| OBD testing | Yes |
| Smoke opacity (non-OBD) | No |
| Motorhomes | Yes |
| Credentialed testers | 1 |
| Last verified | 2026-11-01 |

## Which trucks Dion Ramos 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 MnKEIS in Torrance, about 3 miles away. [See listing](https://ctcfinder.com/tester/mnkeis-torrance/).

## Clean Truck Check testers in Los Angeles County

Dion Ramos 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.

## 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 Dion Ramos offer mobile Clean Truck Check testing?

Yes. Dion Ramos 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 Dion Ramos test a 2012 or older diesel truck?

Dion Ramos does not list smoke opacity testing, which older non-OBD diesel trucks need. The nearest listed tester that does is [MnKEIS](https://ctcfinder.com/tester/mnkeis-torrance/) (about 3 miles). Trucks from 2013 on get an OBD scan instead.

### How much does Dion Ramos charge for a Clean Truck Check?

Dion Ramos has not published prices with us; call (818) 770-8884 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 Dion Ramos a CARB-credentialed tester?

Dion Ramos 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

- **[A & A Smog Away](https://ctcfinder.com/tester/a-and-a-smog-away-lomita/)** — 1913 Pacific Coast Highway, Lomita, CA 90717 — (714) 396-7181 — 1 mi. Services: mobile testing, OBD testing, motorhome testing.
- **[C1 Testing](https://ctcfinder.com/tester/c1-testing-harbor-city/)** — 1404 257th St, Harbor City, CA 90710 — (424) 404-3703 — 1 mi. Services: mobile testing, OBD testing.
- **[Anguiano clean truck](https://ctcfinder.com/tester/anguiano-clean-truck-torrance/)** — 21727 S Western Ave, Torrance, CA 90501 — (310) 222-8622 — 3 mi. Services: mobile testing, OBD testing, motorhome testing.
- **[DF Systems](https://ctcfinder.com/tester/df-systems-torrance/)** — 2463 W 208th St Suite 203, Torrance, CA 90501 — (213) 309-4449 — 3 mi. Services: mobile testing, OBD testing.
- **[MnKEIS](https://ctcfinder.com/tester/mnkeis-torrance/)** — 1647 W 214th St, Torrance, CA 90501 — (310) 809-2791 — 3 mi. Services: mobile testing, OBD testing, smoke opacity (non-OBD) testing, motorhome testing.
- **[Myosha Lair](https://ctcfinder.com/tester/myosha-lair-torrance/)** — Torrance, CA 90501 — (424) 287-8303 — 3 mi. Services: mobile testing, OBD testing, motorhome testing.