2015 VW Jetta 1.8T 52,000 miles . 2 years on Mobil 1 0W40 , Then switched to Castrol 0W40 and the engine was so much smoother and quieter . For the heck of it I just tried Pennzoil Platinum 0W40 same engine noise as Castrol but engine smoothness is the best of the 3 . I didn't even tell my wife that I changed the oil so I was very surprised when she told me the Jetta seemed extra smooth today.
I know butt dynos mean nothing but to me a smooth engine means alot .
I know butt dynos mean nothing but to me a smooth engine means alot .