I’ve had my ‘08 Chevy Impala in Toronto for years; it’s been running smooth with full synthetic oil. Got fewer engine knockin’ issues, it’s a game-changer compared to conventional, trust me!
I’ve always stuck with synthetic oil for my '08 Chevy Impala here in Canada. Best four seasons gave me great mileage without any hiccups, even on those wild Alberta drives. Some folks swear by conventional, but I never rolled the dice on add-ons. The peace of mind is worth every penny; engine’s purring like a kitten ever since I switched over! Totally beats those oil sludge stories.