A 10W40 would be the logical choice here. But the turbocharged Cruze engine, like a lot of modern engines, uses some pretty fine oilways that may not be compatible with the thicker 10W40. Examples of ...

Either way, don’t drive it any farther. This model Cruze used a toothed rubber timing belt, rather than a timing chain. Holden recommended the belt be changed at 90,000km intervals. It’s not a job to ...