"Z71" refers to a package of optional extras available for vehicles manufactured by General Motors, while "4x4" is used as a shorthand way to describe a four-wheeled vehicle in which all of the wheels are powered by the engine, rather than just the front or back wheels. The term 4x4 should not be confused with Individual-wheel drive, or IWD, in which separate motors operate each wheel independently.Know More
Z71 and 4x4 commonly appear together in marketing for vehicles sold by both the GMC and the Chevrolet motor companies. However, it is possible to buy a vehicle with the Z71 package without having four-wheel drive included, and the reverse is also true. As of 2014, General Motors offers several varieties of both four-wheel- and two-wheel-drive vehicles, which feature the Z71 package, including the Chevy Silverado, Suburban and Tahoe as well as the GMC Sierra.
Both GMC and Chevrolet have been offering a Z71 package on vehicles since 1988. The 2015 model year vehicles include a fully boxed frame, independent front-end suspension and a wider rear track. These features are intended to improve the towing and hauling capacity of heavy-duty vehicles, as well as to ensure a more comfortable ride and increase vehicle durability. Vehicles featuring four-wheel drive benefit from these features, but they aren't necessary, particularly on low-slung sports cars, which focus on high power-to-weight ratios.Learn more about Homework Answers
Positive statements in economics refer to those that are based on facts and science, while normative assertions are those that are biased by opinion. Some situations call for positive statements, but they are not always possible if insufficient data is available.Full Answer >
Dexron III and Mercon V are similar types of automatic transmission fluid, with the main difference being that Dexron is the formula developed by General Motors, while Mercon was created by Ford. The specifications of the two formulas are so similar that the two are often considered interchangeable, even if the car manufacturer recommends only using its specific formula.Full Answer >
According to Edmunds.com, Dexos1 is an oil blend that General Motors created for gasoline-powered vehicles, and Dexos2 is the blend GM developed for use in its diesel engines. These Dexos oils were introduced by GM in 2011 as new mixes designed to maximize the efficiency of the company's vehicle motors.Full Answer >
The difference between a supercharger and a blower is that a supercharger is mounted to the front of a vehicle and piped to the intake, whereas a blower is mounted to the intake on the block. Another difference is that a supercharger is belt-driven and forces only air into the manifold. A blower, on the other hand, forces in both air and the fuel mixture.Full Answer >