I have not seen a problem with the 15 & 16s yet . Engines have had design changes to increase fuel economy by using lower resistance rings thinner oil, longer oil change intervals higher quality oil.

General Motors' modern Ecotec engine family first saw the light of day in 2000, when a 2.2-liter inline-four making 147 hp debuted for global use in the Opel Astra — the German brand was a GM ...

General Motors is one of the most storied and well-established automakers on the planet. Sure, it might have ruffled some feathers in the past, like when it introduced leaded fuel, or when the ...