The competition is getting stiff!
Cargo Master
Joined: Sep 2005
Posts: 2,965
Likes: 898
From: Montana
Sorry, fat fingers, and football watching, alcohol influenced typing.... "Survive" in hot weather? GM motors (in my experiences) have never liked hot weather. Time for a 5.0 Ecoboost.
Laughing Gas
Joined: Oct 2005
Posts: 1,058
Likes: 1
From: South Jersey
I've been very curious about the specs of the GM 6.2 in regard to the Ford's 3.5 and 6.2. The reported numbers are very impressive, but if the Silverado's 5.3 received 13 MPG in the comparison test, I have to believe it's possible that the 6.2 would have gotten worse MPG, but much better performance. I was surprised that in the comparison specs, the Ford was said to need 91 octane gasoline. That's only recommended for towing and hauling, but not mandatory.
Logistics Pro
Joined: Oct 2004
Posts: 4,738
Likes: 103
From: FL
Wow, that's pretty high compression to run on 87 octane... I wonder if 89 or higher will be required. I'm guessing no, and that they worked some magic with the DI and programming to run on regular.
Thread Starter
|
Super Moderator
Joined: Aug 2003
Posts: 25,479
Likes: 742
From: Isanti, MN
Back when I had my Mustang I did lots of reading on the engine. They mentioned that they had to use piston cooling jets as well as adaptive spark timing to get the engine to run safely on 87 octane, and that had an 11.0:1 compression ratio.
I think it is a big mistake for them to limit this to the highest trim levels. I've never been one to spend the money on trucks that highly equipped, but I tow lots of heavy things. I don't see myself buying one in the future for this reason, but we'll see what the future brings.
Fleet Mechanic
Joined: Oct 2003
Posts: 1,371
Likes: 10
From: Green Springs, OH
I know a couple people who have the 5.3 in there 4x4 pickups. They are averaging 18 with mixed driving. Jumping right up to low 20s on highway. That is pretty darn good. My 5.0 is just below those numbers at 14-16 mixed and 19 highway. With 3.55 gears. I would expect there 6.2 to probably post numbers around 17 highway in 4 popper mode. Which ain't to bad. Still like ford better though.
Logistics Pro
Joined: Oct 2004
Posts: 4,738
Likes: 103
From: FL
Unless I'm mistaken, I believe even a base XL F150 can be had with the ecoboost.
Thread
Thread Starter
Forum
Replies
Last Post
