Green Car Congress

OCTOBER 25, 2018

Three other brands, Porsche, Volkswagen, and Mercedes-Benz, finished midpack. Consumer Reports’ survey also reveals that some automakers—striving for improved fuel economy—are clearly making more reliable turbocharged engines than others. Porsche bucks the trend in this group, rising two places to number 11.

Dodge 207

Dodge Chrysler Yukon Buick 207

Green Car Congress

FEBRUARY 26, 2016

The number of engine/transmission problems decreased to 24 PP100 in 2016 from 26 PP100 in 2015. Porsche (97 PP100) followed Lexus in the rankings, moving up from fifth in 2015. Following Porsche in the rankings are Buick (106 PP100), Toyota (113 PP100) and GMC (120 PP100). Seven of the top 10 problems are design-related.

Buick 150

Buick Lexus Power Powered 150

Green Car Congress

AUGUST 21, 2014

The 8L90, the replacement for the venerable 6L80 six-speed in GM’s lineup, is offered as well as standard on 2015 Chevrolet Silverado, GMC Sierra and GMC Yukon Denali/Yukon XL Denali models equipped with the 6.2L gear used with previous six-speed automatic models, engine rpm is reduced by 8% (123 rpm) on the highway at 70 mph.

GM 231

GM Yukon Oil Convert 231