APU idle savings — RefrigerX

A113, A114, A115 (APU) vs. 62 other active trucks · 2026-06-29 to 2026-09-27 (90 days) · Samsara fuel/energy report · generated 2026-09-30 18:01

2.88 h

Idle per day — APU trucks (30.3% of engine time)

8.06 h

Idle per day — other trucks (57.3% of engine time)

+5.18 h

Idle avoided per truck per day (4.14 gal)

$8,252

Fuel saved per APU truck per year at $5.46/gal

$24,755

Combined — 3 APU trucks per year

$511,609

If all 62 other trucks had an APU

Group comparison

	Trucks	Idle h/day	Idle % of engine	Idle gal/day	Idle gal/yr	Idle cost/yr
APU trucks	3	2.88	30.3%	2.30	841	$4,592
Other trucks	62	8.06	57.3%	6.44	2,352	$12,844
Difference per truck		+5.18	+27.0 pts	+4.14	+1,511	$8,252

Per truck

Unit	APU	Truck	Engine hrs	Idle hrs	Idle %	Idle h/day	Idle gal	Miles
A113	Yes	2025 FREIGHTLINER CASCADIA	799.1	256.9	32.1%	2.85	205.5	31,594
A114	Yes	2025 FREIGHTLINER CASCADIA	823.0	293.3	35.6%	3.26	234.6	30,338
A115	Yes	2025 FREIGHTLINER CASCADIA	947.4	227.5	24.0%	2.53	182.0	42,332
A106	—	2025 KENWORTH T680	1,534.0	915.5	59.7%	10.17	732.4	34,252
A107	—	2025 KENWORTH T680	1,497.8	910.2	60.8%	10.11	728.2	31,877
A108	—	2025 KENWORTH T680	1,255.2	671.3	53.5%	7.46	537.1	33,759
A109	—	2025 KENWORTH T680	1,679.7	1,049.5	62.5%	11.66	839.6	35,220
A110	—	2025 KENWORTH T680	1,327.4	779.7	58.7%	8.66	623.7	31,359
A111	—	2025 KENWORTH T680	1,523.3	986.5	64.8%	10.96	789.2	29,386
A112	—	2025 KENWORTH T680	1,314.1	740.8	56.4%	8.23	592.6	32,058
A117	—	2021 INTERNATIONAL LT625	149.5	84.3	56.3%	0.94	67.4	3,410
A118	—	2025 FREIGHTLINER CASCADIA	1,483.5	898.0	60.5%	9.98	718.4	32,061
A119	—	2025 FREIGHTLINER CASCADIA	1,507.5	958.5	63.6%	10.65	766.8	29,158
A123	—	2025 FREIGHTLINER CASCADIA	1,639.8	1,009.1	61.5%	11.21	807.3	36,808
A124	—	2025 FREIGHTLINER CASCADIA	1,661.2	1,069.3	64.4%	11.88	855.5	33,913
A125	—	2025 FREIGHTLINER CASCADIA	1,694.7	1,077.9	63.6%	11.98	862.3	35,734
A126	—	2025 FREIGHTLINER CASCADIA	1,666.8	1,081.2	64.9%	12.01	864.9	33,510
A127	—	2025 FREIGHTLINER CASCADIA	811.1	406.3	50.1%	4.51	325.1	22,021
A128	—	2026 FREIGHTLINER CASCADIA	1,682.1	1,007.3	59.9%	11.19	805.8	38,123
A129	—	2026 FREIGHTLINER CASCADIA	1,469.9	860.9	58.6%	9.57	688.8	34,282
A130	—	2026 FREIGHTLINER CASCADIA	1,175.9	557.5	47.4%	6.19	446.0	36,150
A131	—	2026 FREIGHTLINER CASCADIA	1,149.9	566.1	49.2%	6.29	452.9	33,600
A132	—	2026 FREIGHTLINER CASCADIA	1,385.7	804.9	58.1%	8.94	643.9	30,308
A133	—	2025 INTERNATIONAL LT62F	889.5	532.7	59.9%	5.92	426.1	19,708
A134	—	2026 INTERNATIONAL LT62F	1,312.3	747.5	57.0%	8.31	598.0	32,002
A135	—	2026 FREIGHTLINER CASCADIA	1,162.9	690.9	59.4%	7.68	552.7	27,358
A136	—	2026 FREIGHTLINER CASCADIA	1,068.3	695.4	65.1%	7.73	556.4	19,941
A137	—	2026 FREIGHTLINER CASCADIA	1,354.1	809.9	59.8%	9.00	647.9	31,924
A138	—	2026 FREIGHTLINER CASCADIA	1,845.3	730.0	39.6%	8.11	584.0	64,129
A139	—	2026 FREIGHTLINER CASCADIA	1,511.6	953.2	63.1%	10.59	762.6	32,541
A140	—	2026 FREIGHTLINER CASCADIA	1,654.9	1,092.9	66.0%	12.14	874.4	30,478
A141	—	2026 FREIGHTLINER CASCADIA	1,608.1	1,020.4	63.5%	11.34	816.3	33,111
A142	—	2026 FREIGHTLINER CASCADIA	1,393.8	845.8	60.7%	9.40	676.7	29,974
A143	—	2026 FREIGHTLINER CASCADIA	878.3	435.7	49.6%	4.84	348.5	24,032
A144	—	2026 FREIGHTLINER CASCADIA	487.9	135.6	27.8%	1.51	108.5	20,171
A145	—	2026 FREIGHTLINER CASCADIA	850.9	327.7	38.5%	3.64	262.1	28,241
A146	—	2026 FREIGHTLINER CASCADIA	1,780.5	771.8	43.4%	8.58	617.5	57,637
A147	—	2026 VOLVO TRUCK VNL (4)	1,911.2	1,217.8	63.7%	13.53	974.2	39,126
A148	—	2026 VOLVO TRUCK VNL (4)	1,061.6	434.0	40.9%	4.82	347.2	34,780
A149	—	2026 VOLVO TRUCK VNL (4)	1,385.9	879.8	63.5%	9.78	703.9	27,823
A150	—	2026 VOLVO TRUCK NEW VNL	820.1	444.9	54.3%	4.94	355.9	21,306
A151	—	2026 VOLVO TRUCK VNL (4)	2,105.2	844.1	40.1%	9.38	675.3	70,063
A152	—	2026 FREIGHTLINER CASCADIA	1,028.1	611.9	59.5%	6.80	489.5	24,211
A153	—	2026 FREIGHTLINER CASCADIA	1,376.5	742.6	53.9%	8.25	594.1	39,258
A154	—	2026 FREIGHTLINER CASCADIA	1,473.1	894.6	60.7%	9.94	715.7	33,502
A155	—	2026 FREIGHTLINER CASCADIA	843.6	499.7	59.2%	5.55	399.8	20,685
A156	—	2026 FREIGHTLINER CASCADIA	797.1	456.8	57.3%	5.08	365.5	19,232
A157	—	2026 FREIGHTLINER CASCADIA	626.4	373.6	59.7%	4.15	298.9	14,050
A158	—	2026 FREIGHTLINER CASCADIA	1,673.0	995.7	59.5%	11.06	796.6	40,180
A159	—	2026 FREIGHTLINER CASCADIA	955.6	529.2	55.4%	5.88	423.4	25,129
A160	—	2026 FREIGHTLINER CASCADIA	1,465.2	723.6	49.4%	8.04	578.9	42,381
A161	—	2026 FREIGHTLINER CASCADIA	1,174.7	543.3	46.2%	6.04	434.6	37,941
A162	—	2027 FREIGHTLINER CASCADIA	845.4	519.4	61.4%	5.77	415.5	19,217
A163	—	2027 FREIGHTLINER CASCADIA	1,693.3	1,039.3	61.4%	11.55	831.4	40,596
A164	—	2027 FREIGHTLINER CASCADIA	1,569.5	991.9	63.2%	11.02	793.5	34,545
A165	—	2027 FREIGHTLINER CASCADIA	1,011.2	503.4	49.8%	5.59	402.7	29,252
A166	—	2027 FREIGHTLINER CASCADIA	989.5	575.2	58.1%	6.39	460.1	24,942
A167	—	2027 FREIGHTLINER CASCADIA	432.0	216.7	50.2%	2.41	173.4	12,117
A168	—	2027 FREIGHTLINER CASCADIA	204.7	92.8	45.4%	1.03	74.3	6,621
A169	—	2027 KENWORTH T680	1,558.9	978.1	62.7%	10.87	782.5	33,096
A170	—	2027 KENWORTH T680	1,644.4	969.2	58.9%	10.77	775.4	38,432
A171	—	2027 KENWORTH T680	1,241.9	770.9	62.1%	8.57	616.7	27,546
A172	—	2027 KENWORTH T680	1,844.5	1,162.2	63.0%	12.91	929.7	39,583
A173	—	2027 KENWORTH T680	1,029.1	612.5	59.5%	6.81	490.0	24,590
MENSAJERO	—	2022 FORD F-150	281.3	105.7	37.6%	1.17	84.6	3,779

Fuel price: $5.460/gal — AAA Texas diesel average, Sept 4 2026.
Idle fuel basis: Idle fuel estimated at 0.80 gal per idle hour (Samsara did not return idle fuel).
Annualized at 365 days/yr from per-day averages over the window. Last 3 days excluded for Samsara processing lag. APU's own fuel use is not captured by Samsara and is not subtracted; net savings will be somewhat lower.
Excluded: 5857, A100, A101, A102, A103; trucks with under 20 engine hours in the window.