- Aug 24, 2002
- Burlington, Ontario
I have to replace my oil pump on my 95 Golf, and although I'm sure it's not because of the oil grades I was using, I wanted to experiment with something. Currently, all I've ever used is a 5W30 or 10W30 depending on the time of year and always an OEM VW filter, which I understand is made either by Mann or Bosch. Question: Could I blend a 5W50 with a 5W30 to achieve a 5W40 oil grade in effect?? Problem with trying to buy a 5W40 is that no one except the VW dealers have this and it's $12 Cdn a litre!!! Advice, suggestions...