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Similarly engine oil viscosity and cleanliness is a factor. Use of the incorrect oil type, i.e. SAE 10W40 instead of SAE 5W30, or the failure to change the engine oil or oil filter at factory recommended intervals, can also significantly impair system performance. [citation needed] In 2001, GM showcased the 2002 Cadillac Cien concept car, which ...
The High Value engine family from General Motors is a group of cam-in-block or overhead valve V6 engines.These engines feature cast iron blocks and aluminum heads, and use the same 60° vee bank as the 60° V6 family they are based on, but the new 99 mm (3.90 in) bore required offsetting the bores by 1.5 mm (0.059 in) away from the engine center line.
The LWR engine was mated to GM's six-speed 6L45 automatic transmission and, over the combined ADR 81/02 test cycle, the Commodore Omega achieved fuel consumption of 11.8 L/100 km (24 mpg ‑imp; 19.9 mpg ‑US) – an improvement of 1.6 L/100 km compared to its dual-fuel LW2 predecessor.
In 2008, this engine was selected by Wards as one of the 10 best engines in any regular production vehicle. Applications: 2008–2009 Chevrolet Tahoe Hybrid; 2008–2009 GMC Yukon Hybrid; 2008–2009 Cadillac Escalade Hybrid; 2008–2009 Chevrolet Silverado Hybrid; 2008–2009 GMC Sierra Hybrid
Available solely with the 4L60-E automatic transmission, a 5.3 liter LH8 V8 engine producing 300 hp (224 kW) and 320 lbf⋅ft (434 N⋅m) of torque was added in 2008 for the Alpha model. The V8 version had lower fuel economy, estimated at 13 mpg ‑US (18 L/100 km) in the city, 16 mpg ‑US (15 L/100 km) on the highway, with a combined average ...
Due to a long-lasting downturn in sales of full-size trucks and SUVs in the United States (by as much as 30% through the first nine months of 2008), General Motors cancelled the next-generation full-size truck program in May 2008, including the replacements for the Chevrolet Tahoe and Suburban and their siblings at GMC and Cadillac. [4]
The U.S. Big Three were first weakened by the substantially more expensive automobile fuels [6] linked to the 2003–2008 oil crisis which, in particular, caused customers to turn away from large sport utility vehicles (SUVs) and pickup trucks, [7] the main market of the American "Big Three" (General Motors, Ford, and Chrysler).
New engines were the LS-based 5.3L Vortec for the 1500 series and 6.0L Vortec for the 2500 series. Where Chevrolet kept the Tahoe/Suburban branding, GMC renamed its GMT800 products Yukon and Yukon XL, a change that continues to the present day. The shorter 116" wheelbase became the Yukon and the full-length 130" wheelbase became the Yukon XL.