Think i have got myself confused a little regarding suitable oil for running in - some are saying one and some another.


I want to use a decent enough oil that will do the bedding job fine for the first 500 (then repeat for another 500) but i don't want it to cause any harm at the same time so....

Mineral oil - what actually falls under this category???



Castrol 15w 40 is part synthetic which i was going to use as it's the bottom of their range but not 100% sure as some say no it has to be just plain cheap mineral oil

http://www.halfords.com/webapp/wcs/s...egoryId_165581



Even Halfords own oil is part synthetic, pretty much the whole range

http://www.halfords.com/webapp/wcs/s...ed=fullService



Millers running in oil is roughly £25 delivered from the oilman which isn't overly expensive.

http://www.opieoils.co.uk/p-60229-mi...ng-in-oil.aspx



Carlube do a plain mineral oil but is it good enough to use in an expensive engine?

http://www.diy.com/diy/jsp/bq/nav.js...LAID=266990215



What brand make and rating's have you used