Oil for Perkins 4108

[Jacobyte]

Hello, can someone tell me please what grade oil I should use for a Perkins 4108 diesel engine, I asked when I bought the cruiser and was told maybe 15/40 oil but the guy was unsure for certain, my father told me this grade oil might be ok for a diesel engine as well, but I just wanted to check on here CanalWorld for sure.

Thanks, Mike.

[Neil Smith]

10/40 or 15/40 would both be fine, just get the lowest grade you can.

Neil

[Rickent]

And use mineral oil, not synthetic as it tends to be too thin for older engines.

[Ex Brummie]

I use Morris Multivis 15/40. It is semi synthetic, meets the manufacturers spec. and I never have to top up between oil changes. Mineral oils to the same specs are O K but avoid the cheap versions. Perkins last 'for ever' with a regular oil and filter change regime. 

[Rickent]

I did use semi synthetic in mine as i couldn't get mineral but i think older engines are more suited to mineral oil.