cost saving.
Prob ok for cars that get frequent oil changes. Not ok for the 20,000+ users who never lift the bonnet and cant understand why its broken down.
5w30 ford, vaux spec oils are cheap, fully synth, why use anything less ?
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1994 850 2.0 bought at 32,000 miles used daily now 45,000. Still like a nearly-new car
2004 filthy polluting diesel VW
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