---
title: "Mechanicks diesel — Clean Truck Check, Gaffney, SC"
description: "Mechanicks diesel in Gaffney, SC is on CARB's Clean Truck Check tester list. Offers OBD testing. Phone, address and nearby testers."
url: "https://ctcfinder.com/tester/mechanicks-diesel-gaffney-sc/"
updated: "2026-11-01"
publisher: "CTC Finder (independent directory, not affiliated with CARB)"
---

# Mechanicks diesel

Clean Truck Check tester in Gaffney, SC.

> 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 | 296 Lemuels Rd, Gaffney, SC 29341 |
| Phone | (864) 308-7339 |
| Mobile testing | No |
| OBD testing | Yes |
| Smoke opacity (non-OBD) | No |
| Motorhomes | No |
| Credentialed testers | 1 |
| Last verified | 2026-11-01 |

## Which trucks Mechanicks diesel 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 Liberty Motors LLC in Matthews, about 58 miles away. [See listing](https://ctcfinder.com/tester/liberty-motors-llc-matthews-nc/).

If you need a tester at your yard, the nearest listed tester that offers mobile testing is Esprit Event Logistics LLC in Mount Holly, about 41 miles away. [See listing](https://ctcfinder.com/tester/esprit-event-logistics-llc-mount-holly-nc/).

## Clean Truck Check testers in South Carolina

Mechanicks diesel is one of 5 testing businesses in South Carolina on CARB's public tester list. 3 of them offer mobile testing and 0 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 Mechanicks diesel offer mobile Clean Truck Check testing?

Not according to CARB's tester list; plan to bring the truck to the tester. The nearest listed mobile tester is [Esprit Event Logistics LLC](https://ctcfinder.com/tester/esprit-event-logistics-llc-mount-holly-nc/) (about 41 miles).

### Can Mechanicks diesel test a 2012 or older diesel truck?

Mechanicks diesel does not list smoke opacity testing, which older non-OBD diesel trucks need. The nearest listed tester that does is [Liberty Motors LLC](https://ctcfinder.com/tester/liberty-motors-llc-matthews-nc/) (about 58 miles). Trucks from 2013 on get an OBD scan instead.

### How much does Mechanicks diesel charge for a Clean Truck Check?

Mechanicks diesel has not published prices with us; call (864) 308-7339 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 Mechanicks diesel a CARB-credentialed tester?

Mechanicks diesel 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.