Logbook, fuel consumption and truck loading

Distances: 02/06: 185 km; 03/06: 75 km; 04/06: 240 km; 05/06: 175 km; 06/06: 50 km. Total of recorded journeys: 725 km. Actual distance on the odometer: 48,985 - 48,210 = 775 km.

Anomalies: (1) 50 km not recorded between 03/06 (arrival 48,470) and 04/06 (departure 48,520): use outside the logbook. (2) Voucher no. 0457: 140 L for a 130 L tank, two days after a partial fill-up of 60 L: a quantity impossible for the tank, so either the fuel was not put in the vehicle or the voucher was falsified. (3) Saturday 06/06 "errands" journey of 50 km without a movement order: unauthorised use, the purpose is vague. (4) On 05/06, Abéché - Farchana - Abéché is only 175 km against 185 km on 02/06 for the same journey: a small difference, to be checked but acceptable. (5) Total consumption is far above the norm (see question 2).

The tank is full at the start and full at the end: the fuel consumed equals the fuel taken, i.e. 60 + 140 + 40 = 240 L for 775 km.

Actual consumption = 240 / 775 × 100 = 31.0 L per 100 km, more than double the reference. Expected consumption = 775 × 15 / 100 = 116.25 L. Excess = 240 - 116.25 = 123.75 L, i.e. 123.75 × 750 = XAF 92,812.5 (about XAF 92,800) in a single week.

Even after removing the 10 impossible litres from voucher 0457, the excess remains very large: the vouchers must be checked with the fuel station and the vehicle inspected (leak, fault) before any conclusion is drawn.

Weight: kits 1,200 × 14 = 16,800 kg; jerrycans 600 × 1.2 = 720 kg; soap 250 × 20 = 5,000 kg; total 22,520 kg. Volume: kits 1,200 × 0.08 = 96 m³; jerrycans 600 × 0.03 = 18 m³; soap 250 × 0.03 = 7.5 m³; total 121.5 m³.

By weight: 22,520 / 10,000 = 2.25, i.e. 3 trucks. By volume: 121.5 / 40 = 3.04, i.e. 4 trucks. Volume is the deciding constraint.

Recommendation: a fourth truck at XAF 450,000 for 1.5 m³ is not efficient. The 50 cartons (1,000 kg) can go in the project pick-up, at its maximum load, on a mission already planned to Farchana, or with the next convoy if the programme accepts the delay. Cost: 3 trucks = XAF 1,350,000 instead of XAF 1,800,000, a saving of XAF 450,000. The decision is to be confirmed with the programme and the logistics officer.

"Subject: TD-4521, logbook and fuel anomalies, week of 02/06. Hello, while checking the logbook, I found: 50 km not recorded between 03 and 04/06; a 50 km journey on Saturday 06/06 without a movement order; fuel voucher no. 0457 for 140 L whereas the tank holds 130 L. Over 775 km, the vehicle used 240 L, i.e. 31 L per 100 km against a reference of 15: an excess of about 124 L (about XAF 92,800). I suggest checking the vouchers with the fuel station and having the vehicle inspected by the garage. I have not yet raised the matter with the driver. Best regards."