You can have your cake and eat it .
The very best 5W30 C3 manufacturer spec in the world is VW 507.00 .
And because manufacturer specs are industry standards not being an approved oil but 'meets or exceeds the requirements of..'
You then can pick an oil of incredible value that hasn't got the eye watering advertising , R & D , sponsorship or approval costs of the big name oil producers .
A such oil blender
supplies Tesco , Sainsbury's , Asda , G Force , Carlube Triple R , probably Halfords and definitely Euro Car Parts Triple QX .
They buy in huge bulk oil basestocks and additive packages from the main oil producers and blend the exact same big boy industry standards ingredients to make the manufacturers spec recipe .