Wolf Diesel Llc is an active interstate carrier based in Tiffin, OH.
No insurance filings on record.
View on FMCSA L&I| Vehicle Type | Owned | Term Leased | Trip Leased |
|---|---|---|---|
| Straight Trucks | 2 | 0 | 0 |
| Tractors | 2 | 0 | 0 |
| Trailers | 1 | 0 | 0 |
| Total Power Units | 2 | ||
Distinct vehicles · 24 mo
vs 2 self-reported (MCS-150)
Top makes
Registered in
Higher values = more violations. 0 = clean record.
| Category |
|---|
| Category | vs. Cohort | vs. State | Reading |
|---|---|---|---|
| Unsafe Driving | 88% | 89% | Worse than most peers |
| HOS Compliance | 100% | 100% | Worse than most peers |
| Driver Fitness | 0% | 0% | Better than most peers |
| Controlled Substances | 0% | 0% | Better than most peers |
| Vehicle Maintenance | 92% | 93% | Worse than most peers |
Lower percentile = lower SMS measure = stronger safety record. Computed nightly across active carriers in the same state and fleet-size band.
| Type | Inspections | OOS | OOS % | Nat'l Avg |
|---|---|---|---|---|
| Driver | 0 | 4 | — | 6.67% |
| Vehicle | 0 | 2 | — | 22.26% |
| Hazmat | 0 | 0 | — | 4.44% |
Where they run
Inspected in 5 states. Top state KS accounts for of activity.
| Period | Fatalities | Injuries | Tow-away | Total |
|---|---|---|---|---|
| No crashes recorded | 0 | 0 | 0 | 0 |
Most-cited violation codes
| BASIC Category | Total | Severe | OOS |
|---|---|---|---|
| Vehicle Maintenance | 9 | 1 | 2 |
| Date | State | Vehicle | Violations | OOS |
|---|---|---|---|---|
| Feb 25, 2026 | MI | TRUCK TRACTOR | 1 | 0 |
| Feb 5, 2026 | WI | STRAIGHT TRUCK | 12 | 5 |
| Nov 26, 2025 | KS | STRAIGHT TRUCK | 2 | 1 |
| Jul 22, 2024 | OH | STRAIGHT TRUCK | 1 |
| Insp w/ Viol |
|---|
| Measure |
|---|
| Alert |
|---|
| Unsafe Driving | 1 | 1.79 | — |
| HOS Compliance | 2 | 11.55 | — |
| Vehicle Maintenance | 3 | 12.00 | — |
| Driver Fitness | 0 | 0.00 | — |
| Controlled Substances | 0 | 0.00 | — |
| Hours-of-Service Compliance |
| 6 |
| 5 |
| 4 |
| Unsafe Driving | 1 | 0 | 0 |
| 0 |
| Apr 30, 2024 | TN | STRAIGHT TRUCK | 0 | 0 |
| Date | Code | Description | BASIC | OOS |
|---|---|---|---|---|
| Feb 25, 2026 | 3922SLLUP | State/Local Laws - Unlawfully parking /leaving vehicle on roadway | Unsafe Driving | — |
| Feb 5, 2026 | 393104BC | Cargo - Damaged securement devices/tiedowns | Vehicle Maintenance | — |
| Feb 5, 2026 | 393110B3C | Cargo - Insufficient tiedowns (w/o headerboard/blocking) for article(s) of cargo longer than 10 feet | Vehicle Maintenance | Yes |
| Feb 5, 2026 | 39348ABIHE | Hydraulic/Electric Brake - Inoperative other than a steering axle. | Vehicle Maintenance | — |
| Feb 5, 2026 | 3939ALIL | Lighting - Identification lamp(s) inoperative | Vehicle Maintenance | — |
| Feb 5, 2026 | 3939ALSLI | Lighting - Stop lamps - Any inoperative. | Vehicle Maintenance | — |
| Feb 5, 2026 | 3939ALSML | Lighting - Side marker lamp(s) inoperative | Vehicle Maintenance | — |
| Feb 5, 2026 | 3953A1HOSPD | HOS (Property) - Driving more than 11 hours following 10 consecutive hours off duty during the current 8 consecutive day period. Date and Time | Hours-of-Service Compliance | — |
| Feb 5, 2026 | 3953A2HOSPD | HOS (Property) - Driving beyond the 14 hour after coming on duty following 10 consecutive hours off duty during the current 8 consecutive day period. Date and Tim | Hours-of-Service Compliance | — |
| Feb 5, 2026 | 3953A2HOSPDIT | HOS (Property) - Driver driving beyond the 14 hour after coming on duty following 10 consecutive hours off duty at the time of inspection. Time | Hours-of-Service Compliance | Yes |