Moosetang

Consumer perception's still a huge chunk of that. The typical "guy/gal that shops at Wal-Mart" thinks that paying for premium gas is a rip-off, benefits be ****ed. Same reason I see people at my mechanic's shop complaining of poorly-running engines in the high-dollar imports, only to find out they've been running cheap fuel through a premium engine on a car they paid 40-50 grand for.

TehSLeeper

High Octane gas IS a rip off if you don't need to run it in your car. It's based on compression ratio as well as whether or not you're N/A.

I'd love for you to show me how using higher octane fuels usually means more mpg.

Use what the **** manual tells you to. Anything higher grade will not aide performance nor will it hinder it, just less money in your pocket. If you use lower octane you run the risk of knock and detonation.

Black331

Unfortunately Fourcam is saying 2011, which is better than 2012, why Ford would hold out on this engine I do not know, it should go in the re-freshed 09 which will have competition this time.. Not everybody can afford a GT500.

Knight

you increase mpg the same way it increases hp.

When you add higher compression or change timing you are using the fuel more efficently. which is why you increase hp without using more fuel.

Same thing with mileage, you will be using the fuel more effiecently thus getting better mileage per gallon.

lcbrownz

igor vbmenu_register("postmenu_4574", true);
Ford Focus
Join Date: Mar 2007
Posts: 131


The engine is for the F-150. This is what I found on another website.

Re: Insideline: News on '09 F-150

The truck will launch in the fall of 2008 (as a 2009 model) with:
4V DOHC PFI 3.7l V6 (about 280 ft.lbf at 2000 rpm) (not sure about transmission)
3V SOHC PFI 4.6l V8 with 6speed auto (Explorer combo - 292 hp and 300 lb.-ft)
3V SOHC PFI 5.4l 6speed auto (Expedition combo - 300 hp and 365 lb.-ft ) - likely with somewhat more power than this (about 325hp and 380lb-ft)
NO BOSS ENGINES

2009 1/2 Model (Februaury 2009) will add:
2V SOHC PFI 6.2l V8 BOSS engine (iron block, aluminium head) with 6speed auto (425hp)

2010 Model (fall 2009) will add:
DOHC 4.4l Common Rail Diesel with CGI block (315hp and 520 lb-ft)
4V DOHC TT DI 3.5l V6 - Twin Turbocharged Direct injected (Twin Force - 350hp, 380 lb-ft at 2000 rpm)

2011 or 2012 model will add:
4V DOHC TT TIVCT DI 6.2l V8 - Twin independent variable cam timing, twin turbocharged, direct injected (Twin Force - over 650 lb - ft)

My sources are better than Edmunds' .. and I posted this before they did .. in short - their source confused the BASE v6 and 6.2l v8 availability with the TWIN FORCE availbality for those engines

The truck will launch with the 3.7l V6, the 6.2l V8 will be 6 months late, and the Twin Force 3.5l V6 and the Diesel will be 12 months late.

Igor

GT98

Someone on the 09 Lanch team for the F-150 stated that the Boss will come in 2010 for the F-150.

I'm looking forward to a Twin Force 3.5L V6 in a Mustang though...

My line up:

Base Mustang: 260HP 3.5L V6 or a 3.7L DI V6 for nearly 300 HP
GT: 350hp 4.6L V8
Sprint: 375HP 3.5L V6 Twin Force (about 3-4 Grand more then a GT, sold in limited Numbers, gets better MPG)
Boss/Mach I/Specal Edition Mustang: 6.2L Boss Engine with 425HP
Cobra/GT500: 6.2 V4 DI engine for 500HP
Ultimate Mustang: 7.0L Boss for 700 HP if needed

jsaylor

Knight got it right. Did you miss the engine tuned for premium portion of my statement or just choose to ignore it?

jsaylor

I've seen it too and I still don't get it. When he was younger my brother owned a slew of Trans Ams, a couple of them genuinely fast cars, and yet every time one of his cars would need new shoes he would run for the cheapest rubber he could get. Whats the point?

Moosetang

To that, I have no answer

jsaylor

Bad gas, cheap tires...I suppose the auto makers should consider themselves fortunate that there are apparently even more people who want to own a performance car for the image they perceive it provides than for the performance itself.

bob

Alot of people are that way about tires, most people give the excuse "well I dont drive that fast anyway" not realizing that performance tires offer so much more than just staying glued together as defined by the speed symbol on the tire. No one ever thinks about the fact that they are minimizing a safety system on the car (going down a grade can increase the braking distance by a car length), going in a straight line and coasting down can be done by any tires, but down grade a tire and throw a hazard on the road, and watch what happens, or tear through an on ramp and mis judge your speed and see what happens, of course the tire industry is to blame partly for this, IMO every manufactuer should have as part of thier requirements for selling tires, a MANDATORY comprehinsive test that qualifies the dealer to sell their product. I'm sure most major tire manufactuers offer some sort of program. Michelin has some awesome facilities in the Greenville SC area (http://www.michelinpg.com/), and this should be at the top of the list -> http://www.michelinman.com/tire-care...artire-change/

TehSLeeper

Engines tuned for premium aren't automatically more efficient... So I guess all of those cars running on 100 octane, because they're tuned to do so are automatically more efficient and get better mpg?

Look bud, upping the compression DOES NOT automatically increase mpg. When you up the compression you need to counter that with the right octane of gas. Octane rating is a fuels resistance to detonation. When you have FI or high compression engines the ocatane rating of the fuel you use MUST be higher to match the added force of the combustion reaction and heat. Therefore you need a fuel with a higher resistance to detonation. It does not neccesarily mean your engine is making better mpg if your car is more "efficient" in your mind. When you up the compression, which requires higher octane fuels, you're going to make more power not neccesarily and rarely ever better mpg. True efficiency, in my mind atleast, is a balance of the power the car makes and mpg. By your logic you make ferrari's sound like gas sippers. Cars tuned for higher octane gasoline does not automatically make a better car mpg wise.