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According to our friends at PickupTrucks.com, Ford is developing an engine which might offer a powerful alternative to diesels at a lower price. Codenamed Bobcat, the gasoline-powered engine allegedly begins with Ford's EcoBoost architecture and then, with the help of ethanol injection, goes places turbocharged engines can't normally venture. By using a secondary set of injectors to shoot ethanol from a separate tank into the combustion chamber, compression ratios can be drastically raised without pre-ignition, thus boosting fuel economy another 10 percent and overall power output quite a bit — think 500 HP and 700 lb-ft of torque from a five-liter V8.
The ZR1 Corvette is one serious piece of American metal, with the athleticism of a track star and the brute power of drag racer. While light weight materials, magnetic damping and 15.5-inch Brembo brakes sounds impressive, the real meat lies under the hood of the fastest ever production Corvette. GM's supercharged 6.2L small block V8 packs at least 620 hp and nearly 600 lb-ft of torque, and its duty is to finally put the Corvette into the supercar club. We were lucky enough to spend some time with Ron Meegan, the assistant chief of GM's small block engine program, and he gave us an engineer's view of the supercharged LS9 engine. Hit the jump to learn why GM didn't use the 7.0L V8 from the Z06, why the Eaton supercharger is so special, and whether or not GM is being modest with the ZR1's projected 620 hp rating.
We've been hearing about Honda's upcoming clean diesel for quite some time now, and the automaker was kind enough to show a cutaway of the i-DTEC clean diesel for us at the 2008 Detroit Auto Show. Expect to see the engine appear first in an upcoming and unnamed Acura product around 2009 - but while you may have to wait over a year for the engine, you can see some cutaways of it right now in our photo gallery below. Click past the jump for some brief commentary on what we learned about Honda's i-DTEC clean diesel in Detroit.
New study reveals 7 out of 10 drivers perceive their vehicles run better after oil change.*
HOUSTON, January 2007--If you feel your car runs better after an oil change, you’re not alone. Pennzoil has heard drivers say for years that they perceived their vehicles to run better after an oil change, so last year the company decided to look into the situation a little more scientifically.
Pennzoil commissioned Harris Interactive, a leading independent market research firm, to survey more than 300 drivers in three major cities (Atlanta, Chicago and Seattle) before and after an oil change involving oil of the same type and viscosity. All the conventional oil users had their oil changed with Pennzoil® Conventional motor oil. All the full synthetic oil users had their oil changed with Pennzoil Platinum® motor oil.
The study was conducted blind. At no time did the participants know what brand of motor oil was going into their vehicles. Although Pennzoil products were used in the oil changes, the study was neither intended nor designed to compare different brands of motor oil.
To ensure they were familiar enough with their vehicle’s performance to comment, only those who were the sole or co-equal decision-maker on their vehicle’s upkeep were accepted into the study. Their vehicle had to be in good operating condition and be one they drove four or more times per week.
After the oil change, the participants were asked a series of questions online to determine the exact nature of any change(s) they perceived: --How the engine sounds when first started. --How well the vehicle drives. --How the car feels overall, etc.
So what were the results of the study?