Advice on engine, package 2011 Yukon, Suburban
#11
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I understand what everyone is saying about the 5.3L getting better mileage due to displacement but if you compare 6.0L all wheel drive to 6.0L 4WD then doesn't the all wheel drive actually get better mileage? Sounds crazy but on the newer (post '03) push button 4WD's all the drive components are turning, just not being "driven" which leads to friction drag and a waste of energy causing more fuel consumption.
Wannabe
#12
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My wife has an 09 Yukon Denali XL with the 6.2.Before I got it for her I drove a Yukon XL with the 5.3.Its night night and day performance wise.And the Denali has AWD the Yukon with the 5.3 just had 4 wheel that could be turned on an off.
Around town wife gets around 14 but on the highway we have seen 18.
Around town wife gets around 14 but on the highway we have seen 18.
#13
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Join Date: Feb 2008
Location: Richmond, Virginia
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Agreed as far as the AWD version. Would you agree that on the 4WD that the front drive shaft and front axles are turning since they're still "locked in" at the front wheels even when it's in 2WD mode? That's my line of thinking.
#14
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Wannabe
#15
Yes, and the dodges don't have locking hubs at all... Ford hubs have been notoriously problematic in auto mode, although if you get out and lock them in manually, they'll work.
#16
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Hmmm that's strange. I know I've seen the front axles turning on a lifted '02 or '03 Burb while in 2WD mode and I know my drive shaft turnes on my '04 Avalanche while in 2WD mode. Now I'm really curious, so I guess I'll look at my truck in the morning.
#17
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GM hasn't used 'hubs' since they put a solid axle under the front of the trucks/blazers/suburbans (granted the subs/blazers didn't change body style/axle until 91-ish).
Last edited by c_deezy; 10-06-2011 at 10:08 PM.
#19
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My '06 6.0L 3.73 AWD Denali XL was lucky to see 16 MPG highway. This is hand calculated mileage, not going off the DIC. It never passed a gas station it didn't want to pull into. I liked the extra power over a 5.3L truck when towing. If it is a daily driver that will only see occasional light towing duty, I would stick with the 5.3L.
#20
My '06 6.0L 3.73 AWD Denali XL was lucky to see 16 MPG highway. This is hand calculated mileage, not going off the DIC. It never passed a gas station it didn't want to pull into. I liked the extra power over a 5.3L truck when towing. If it is a daily driver that will only see occasional light towing duty, I would stick with the 5.3L.