just wondering ive got shell helix ultra 5w 40 fully synthetic oil i put it a few months ago when i rebuilt the engine, just wondering ive got a bottle of castrol part synthetic 10w 40...
can i mix it or should i get the same brand or viscosity of oil?
its at about half at the moment put 5 litres in, + got the oil cooler everything was empty needs a top up
mixing oils?
Moderator: martauto
-
HairyScreech
- Engaged to the E30 Zone
- Posts: 6265
- Joined: Sun Jan 21, 2007 11:00 pm
In theory no, not good. In practice it happens all the time, only way to prevent it would be never change oil brands or flush the entire system at oil change time, so i wouldn't worry too much.
2.8 development thread http://www.e30zone.net/modules.php?name ... c&t=170822
m3.3.1 m20 thread - now running, chip needed - any volunteers?
http://www.e30zone.net/modules.php?name ... =viewtopic&
m3.3.1 m20 thread - now running, chip needed - any volunteers?
http://www.e30zone.net/modules.php?name ... =viewtopic&
-
capnmchl
- E30 Zone Camper
- Posts: 1141
- Joined: Mon Feb 20, 2012 11:00 pm
- Location: Exeter, Devon
It's more a problem of mixing mineral, semi synthetic and fully synthetic oils rather than brands or viscositys.