So I know there are a load of oil threads on here, but what is the oil of choice for a rebuilt motor?

 

Obviously 10w-40 is the recommended oil from Nissan, but on a fresh motor after the initial 1st change of oil will a good 5w 40 be ok?

 

(Awaits Slickpete) :lol:

Have you asked your engine (re)builder?

Have you asked your engine (re)builder?

 

I did yes, and not that I question his recommendation.

 

Just wanted to know what other people have used, or recommendations from other reliable professional people in the know.

How about this from one of our traders??

http://www.opieoils.co.uk/p-60229-millers-oils-cro-10w-40-competition-running-in-oil.aspx

Could ask Jimmer, Noel, Jeff as they are all extremely experienced........... and very nice peeps........ lol

I once heard that a fresh re-build should be run with mineral oil for the first 500 miles; as synthetic and semi-synthetic oils have lower wear properties, therefore don't allow the bearings etc to bed in as well......

 

......But then many a brand new car will be filled with the right grade of synthetic oil from the off; which kind of puts that theory to bed:wink:

 

But you certainly won't do any harm with a mineral oil (of the right grade) if you're taking it easy over the first couple of hundred miles; as long as you do an oil and filter change with a decent semi or fully synthetic thereafter!

 

Richard:cool: