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If you want to cut your fuel bill, get off the throttle
Fuel consumption figures for Mercruiser marine engines:
3.0 L: 6gph at 3500 cruise, 11.5 gph WOT 4.3 L (2 bbl): 8.5 gph at 3500 cruise, 16.7 gph WOT 4.3 L MPI: 9.0 gph at 3500 cruise, 19.5 gph WOT 5.0L (2 bbl): 9.0 gph at 3000 (not 3500) cruise, 20.5gph WOT 5.0 L MPI: 10.9 gph at 3500 cruise, 22 gph WOT 350 Mag MPI: 12gph at 3500 cruise, 22gph at (5000 rpm) WOT MX 6.2L MPI: 13.2 gph at 3500 cruise, 25.1 gph at 5200 WOT 496 Magnum: 16.0 gph at 3500 cruise, 30.5 gph at WOT 496 Magnum HO: 18.5 at 3500 cruise, 33gph at 5000 WOT. Hmm, lets see: Running a pair of 496 HO gassers at well above cruise speed would likely burn close to 30 gph per side or 60gph total. 60 gph X $5/gal = $300 per hour in fuel costs. Over $2000 for an all-day high speed run. Running the same engines at 3500 rpm cruise would burn 37 gph, for a total of $185 per hour in fuel costs at $5 a gallon. Still not cheap by any stretch of the imagination, but at least not as far out of the questiong for most folks as a $2000 daily (or even weekend) fuel bill would be. |
If you want to cut your fuel bill, get off the throttle
Here's a typical day at the lake. - This does not include the monthly
payment, maintenance, insurance or possible repairs needed after the trip on either the boat or the tow vehicle, only the expense for the day. If we're on the lake for about 8 hours and cruise (~35-40 mph) about 25% of the time and approximately 10% of the time we're running wot to pull a skier or towable and the other 65% the engine was off and we're relaxing or swimming, we would burn about 35 gallons of gas. That will cost us about $112. And I used to think the beer and ice was the big expense. (8 x .25)9.0=18 x $3.25 = $58.50 (8 x .10)20.5=16.4 x $3.25 = $53.30 34.4 gph 111.80 Park entrance fee 7.00 Food/beverage/ice 38.00 TOTAL= $156.80 Fuel consumption figures for Mercruiser marine engines: 3.0 L: 6gph at 3500 cruise, 11.5 gph WOT 4.3 L (2 bbl): 8.5 gph at 3500 cruise, 16.7 gph WOT 4.3 L MPI: 9.0 gph at 3500 cruise, 19.5 gph WOT ----- 5.0L (2 bbl): 9.0 gph at 3000 cruise, 20.5gph WOT ----- My category 5.0 L MPI: 10.9 gph at 3500 cruise, 22 gph WOT 350 Mag MPI: 12gph at 3500 cruise, 22gph at (5000 rpm) WOT MX 6.2L MPI: 13.2 gph at 3500 cruise, 25.1 gph at 5200 WOT 496 Magnum: 16.0 gph at 3500 cruise, 30.5 gph at WOT 496 Magnum HO: 18.5 at 3500 cruise, 33gph at 5000 WOT. |
If you want to cut your fuel bill, get off the throttle
On 24 Apr 2006 11:33:54 -0700, "azboating" wrote:
Here's a typical day at the lake. - This does not include the monthly payment, maintenance, insurance or possible repairs needed after the trip on either the boat or the tow vehicle, only the expense for the day. If we're on the lake for about 8 hours and cruise (~35-40 mph) about 25% of the time and approximately 10% of the time we're running wot to pull a skier or towable and the other 65% the engine was off and we're relaxing or swimming, we would burn about 35 gallons of gas. That will cost us about $112. And I used to think the beer and ice was the big expense. (8 x .25)9.0=18 x $3.25 = $58.50 (8 x .10)20.5=16.4 x $3.25 = $53.30 34.4 gph 111.80 Park entrance fee 7.00 Food/beverage/ice 38.00 TOTAL= $156.80 Fuel consumption figures for Mercruiser marine engines: 3.0 L: 6gph at 3500 cruise, 11.5 gph WOT 4.3 L (2 bbl): 8.5 gph at 3500 cruise, 16.7 gph WOT 4.3 L MPI: 9.0 gph at 3500 cruise, 19.5 gph WOT ----- 5.0L (2 bbl): 9.0 gph at 3000 cruise, 20.5gph WOT ----- My category 5.0 L MPI: 10.9 gph at 3500 cruise, 22 gph WOT 350 Mag MPI: 12gph at 3500 cruise, 22gph at (5000 rpm) WOT MX 6.2L MPI: 13.2 gph at 3500 cruise, 25.1 gph at 5200 WOT 496 Magnum: 16.0 gph at 3500 cruise, 30.5 gph at WOT 496 Magnum HO: 18.5 at 3500 cruise, 33gph at 5000 WOT. Where did you find that info, and why isn't the 5.7L included? -- 'Til next time, John H ****************************************** ***** Have a Spectacular Day! ***** ****************************************** |
If you want to cut your fuel bill, get off the throttle
Where did you find that info, and why isn't the 5.7L included? -- The 5.7 isn't included because it hasn't been a current offering in the lineup for some time now, other than in the 350 mag version. The 5.0 has replaced the 5.7 as the standard small block V8 offering. Go figure. |
If you want to cut your fuel bill, get off the throttle
"azboating" wrote in message ups.com... Here's a typical day at the lake. - This does not include the monthly payment, maintenance, insurance or possible repairs needed after the trip on either the boat or the tow vehicle, only the expense for the day. If we're on the lake for about 8 hours and cruise (~35-40 mph) about 25% of the time and approximately 10% of the time we're running wot to pull a skier or towable and the other 65% the engine was off and we're relaxing or swimming, we would burn about 35 gallons of gas. That will cost us about $112. And I used to think the beer and ice was the big expense. (8 x .25)9.0=18 x $3.25 = $58.50 (8 x .10)20.5=16.4 x $3.25 = $53.30 34.4 gph 111.80 Park entrance fee 7.00 Food/beverage/ice 38.00 TOTAL= $156.80 You forgot to include what it costs you in gas to get to and from the lake, towing your boat. The hits just keep on coming. |
If you want to cut your fuel bill, get off the throttle
You did have to remind me of that. We live about 30 minutes from the
lake which burns about 15 gallons round trip, so add another $48 to that total. Yikes! a $200 day. |
If you want to cut your fuel bill, get off the throttle
Typically for a day trip we go to lake pleasant, it's close enough for
us to go afterwork on a weekday or first thing on a Saturday morning for a breakfast cruise. If we're going for a few days or more we'll head to Lake Mead or Lake Powell. |
If you want to cut your fuel bill, get off the throttle
"azboating" wrote in message ups.com... Typically for a day trip we go to lake pleasant, it's close enough for us to go afterwork on a weekday or first thing on a Saturday morning for a breakfast cruise. If we're going for a few days or more we'll head to Lake Mead or Lake Powell. Mine's slipped at Saguaro. I towed a friends boat to Lake Mead two weeks ago. He keeps it in dry storage at Lake Pleasant. We launched and stayed at Temple Bar. My boat hasn't been on Lake Powell since Summer 2003. |
If you want to cut your fuel bill, get off the throttle
wrote in message oups.com... Fuel consumption figures for Mercruiser marine engines: 3.0 L: 6gph at 3500 cruise, 11.5 gph WOT 4.3 L (2 bbl): 8.5 gph at 3500 cruise, 16.7 gph WOT 4.3 L MPI: 9.0 gph at 3500 cruise, 19.5 gph WOT 5.0L (2 bbl): 9.0 gph at 3000 (not 3500) cruise, 20.5gph WOT 5.0 L MPI: 10.9 gph at 3500 cruise, 22 gph WOT 350 Mag MPI: 12gph at 3500 cruise, 22gph at (5000 rpm) WOT MX 6.2L MPI: 13.2 gph at 3500 cruise, 25.1 gph at 5200 WOT 496 Magnum: 16.0 gph at 3500 cruise, 30.5 gph at WOT 496 Magnum HO: 18.5 at 3500 cruise, 33gph at 5000 WOT. Hmm, lets see: Running a pair of 496 HO gassers at well above cruise speed would likely burn close to 30 gph per side or 60gph total. 60 gph X $5/gal = $300 per hour in fuel costs. Over $2000 for an all-day high speed run. Running the same engines at 3500 rpm cruise would burn 37 gph, for a total of $185 per hour in fuel costs at $5 a gallon. Still not cheap by any stretch of the imagination, but at least not as far out of the questiong for most folks as a $2000 daily (or even weekend) fuel bill would be. Our 21 foot runabout is powered by a single 190 HP 4.3L Volvo Penta I/O. We normally cruise at about 3200 rpm, although we may run it up a bit to catch up with some friends on the Lake or to get somewhere.......fast. This boat cruises at 35 mph and will do close to 50 mph WOT. Most of our high fuel consumption comes when we pull the kids skiing or tubing. As we only purchased this boat late last summer I have not had the chance to develop any GPH estimates when cruising vs. pulling our kids on skis or in tubes....but the bottom line for us is that the fuel price increases will not be a problem or impact our new boating habits. I am certainly glad we sold our 32 footer with twin 260HP engines. ;-) |
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