Fuel Economy

Engine	HP	Idle	1000	1500	2000	2500	3000	3500	4000	4500	4800	WOT
Volvo Penta 3.0 GL – 181 cid	135 hp	0.55	0.95	1.85	3.2	4.1	5.3	6.9	8.7	11.8		11.8 GPH
Volvo Penta 4.3 GL – 262 cid	190 hp	0.65	1.2	2.2	3.7	4.6	6.1	7.5	9.5	13	17.3	17.3 GPH
Volvo Penta 4.3 GXi – 262 cid	V6-225	0.69	1.3	2.4	3.8	5	6.75	7.5	10.3	14.5	18.1	18.1 GPH
Volvo Penta 5.0 Gi – 305 cid	V8-225	0.77	1.27	2.4	3.8	5	6.7	7.5	10.3	14.7	18.2	18.2 GPH
Volvo Penta 5.0 GXi – 305 cid	V8-270	0.82	1.3	2.5	4.1	5.8	7.5	10.4	13.7	17.8	21.4	21.4 GPH
Volvo Penta 5.7 Gi – 350 cid	V8-300	0.95	1.85	3.7	7	8.2	10.2	13.6	17.4	20.2	22.7	22.7 GPH
Volvo Penta 5.7 GXi – 350 cid	V8-320	1	1.85	3.8	7.3	8.5	10.2	13.9	17.8	20.6	23.6	23.6 GPH
Volvo Penta 6.0 – 364 cid	V8-380	0.82	1.3	2.3	3.8	6.1	7.5	9.9	12.7	15.4	18.7	30.6 GPH
Volvo Penta 8.1 Gi – 496 cid	375 hp	1.08	2	3.4	6.7	10.3	11.5	14.7	18	24.7	31.1	31.1 GPH
Volvo Penta 8.1 GXi – 496 cid	420 hp	1.15	2.1	3.7	7	8.9	11.2	14.9	18.2	26.3	34	34.0 GPH

*These figures don’t take drag of the boat, sea conditions, propeller pitch/size, or efficiency losses through transmissions and bearings into account.

WOT = Wide Open Throttle