View Single Post
      01-16-2013, 04:43 AM   #60
Private First Class
Nishan's Avatar
Drives: BMW 435i-Estoril Blue
Join Date: Jan 2011
Location: South africa

Posts: 141
iTrader: (0)

Garage List
Originally Posted by av2 View Post
Like someone mentioned, I would change the oil out earlier than BMW's suggested interval. The factory TWS motor oil is high a quality group 4/5 synthetic. Adding just a liter of mineral won't harm your engine but it will degrade the oil inside your engine quicker. The viscosity of the oil added was thinner at operating temp plus group 1 and 2 mineral oils won't last 10,000 miles. Mineral oils should be changed out within 3,000 miles to avoid sludge build ups.
Finally, some good advice. Thank you!
Nishan is offline   South Africa
Reply With Quote