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My 2012 Holden Cruze SRIV turbo has 200,000kms. What oil would be most suitable for this vehicle?
The official oil recommendation for this vehicle is a fully synthetic 5W30 grade oil. If the engine is in good condition, this is the best oil to use. The X-factor in all of this, of course, is the relatively high mileage your car has covered. As engines wear, and perhaps begin to consume a bit more oil between oil-changes, the conventional wisdom has been to use a slightly thicker oil. 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 this include the oilways that lubricate the turbocharger’s bearing and also the ones that allow the variable valve timing to operate properly. Unless the engine is showing real signs of wear, sticking with the 5W30 oil is definitely the best advice.
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