---
title: "G4 Testing Solutions — Clean Truck Check, Menifee, CA"
description: "G4 Testing Solutions in Menifee, CA is on CARB's Clean Truck Check tester list. Offers mobile testing, OBD testing, smoke opacity (non-OBD) testing, motorhome…"
url: "https://ctcfinder.com/tester/g4-testing-solutions-menifee/"
updated: "2026-11-01"
publisher: "CTC Finder (independent directory, not affiliated with CARB)"
---

# G4 Testing Solutions

Clean Truck Check tester in Menifee, 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 | 28377 Encanto Dr B205, Menifee, CA 92586 |
| County | Riverside County |
| Phone | (951) 826-9520 |
| Mobile testing | Yes |
| OBD testing | Yes |
| Smoke opacity (non-OBD) | Yes |
| Motorhomes | Yes |
| Credentialed testers | 1 |
| Last verified | 2026-11-01 |

## Which trucks G4 Testing Solutions 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 Riverside County

G4 Testing Solutions 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 Menifee itself there are 10 listed businesses, 10 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 G4 Testing Solutions offer mobile Clean Truck Check testing?

Yes. G4 Testing Solutions 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 G4 Testing Solutions test a 2012 or older diesel truck?

Yes. G4 Testing Solutions 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 G4 Testing Solutions charge for a Clean Truck Check?

G4 Testing Solutions has not published prices with us; call (951) 826-9520 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 G4 Testing Solutions a CARB-credentialed tester?

G4 Testing Solutions 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

- **[CB Clean Truck Compliance](https://ctcfinder.com/tester/cb-clean-truck-compliance-menifee/)** — 29798 Calle Tomas, Menifee, CA 92586 — (951) 210-8822 — 1 mi. Services: mobile testing, OBD testing, smoke opacity (non-OBD) testing, motorhome testing.
- **[Robles Mobile Technician](https://ctcfinder.com/tester/robles-mobile-technician-menifee/)** — 29956 Evans Rd, Menifee, CA 92586 — (951) 403-9934 — 1 mi. Services: mobile testing, OBD testing, motorhome testing.
- **[Tri City Smog:>](https://ctcfinder.com/tester/tri-city-smog-menifee/)** — 29770 Bradley Rd Ste J, Menifee, CA 92586 — (951) 458-4058 — 1 mi. Services: mobile testing, OBD testing, motorhome testing.
- **[Kyle Ager](https://ctcfinder.com/tester/kyle-ager-canyon-lake/)** — Canyon Lake, CA 92587 — (714) 651-2528 — 3 mi. Services: mobile testing, OBD testing, smoke opacity (non-OBD) testing, motorhome testing.
- **[Mobile Carb Truck Check](https://ctcfinder.com/tester/mobile-carb-truck-check-canyon-lake/)** — 22720 Inspiration Pt, Canyon Lake, CA 92587 — (951) 634-9320 — 3 mi. Services: mobile testing, OBD testing, motorhome testing.
- **[Lavalube LLC](https://ctcfinder.com/tester/lavalube-llc-menifee/)** — 23526 Vista Way, Menifee, CA 92587 — (951) 334-8998 — 3 mi. Services: mobile testing, OBD testing.