Mk 4 spitfire engine oil?

[Stevejames]

What engine oil should I use? Mk4 Spitfire engine rebuilt but never started or filled with oil. Is it still Duckhams 20/50?

Cheers, Steve

[Amy Wade]

I always use Duckhams Q 20/50

[Clive]

Possibly a running in oil would be wise if the bores have been honed an dnew rings (or a rebore)

Otherwise almost any decent 20/50 is fine for most people. A better class of oil is a good idea if driven hard (ie thrashed, the RBRR or 10CR type of thing)

[RobPearce]

I generally use Morris Goldenfilm for engines with good oil pressure, or Penrite 20/60 for those that need a bit of help. I always used to use Duckhams but it's not so easy to find these days so I buy online, and the Morris seems good.

[PeteStupps]

Whatever you go for, Opie Oils have regular 15% discount offers so I signed up for the emails and buy whenever it's cheap!

[Clive]

14 minutes ago, PeteStupps said:

Whatever you go for, Opie Oils have regular 15% discount offers so I signed up for the emails and buy whenever it's cheap!

I got 20% yesterday. Very nice, as I bought 5L each of Dynax S50 and UB, plus 20L of millers 20-60. Really sweetened the deal

[Stevejames]

Thanks for all the replies. Much appreciated, cheers, Steve

[standardthread]

When I first started driving and maintaining Triumphs years ago I used to use Duckhams. When I needed some more I couldn't get it so I switched to Castrol GTX. On doing so someone told me to stick to one or the other because they aren't (weren't) compatible/mixable, one being mineral based the other vegetable (or similar) based?

From that point I have stuck to GTX from Opie.

Edited October 31, 2022 by standardthread

[Wendy Dawes]

2 hours ago, Stevejames said:

Thanks for all the replies. Much appreciated, cheers, Steve

I use Halfords  classic 20/50 it’s always given me confidence and looks and smells just like the proper greenish coloured Duckhams 20/50 

[yorkshire_spam]

4 hours ago, Clive said:

Otherwise almost any decent 20/50 is fine for most people. A better class of oil is a good idea if driven hard (ie thrashed, the RBRR or 10CR type of thing)

Clive is spot on with this advice, even more critical for a 1500, but still very relevant to a 1300. "bog standard" 20w50 is fine for general usage to even moderate mileage / performance. BUT if you plan some hardcore motoring it's well worth investing in a premium oil, Penrite, Valvoline or Millers performance oils for example. 

 

[Tim Bancroft]

Valvoline VR1 or Classic Oils Heritage 20w/50.

[TRTOM2498]

Penrite 20/60 will be perfectly adequate here, & holds its viscosity very well.

[Stevejames]

Thanks again folks for your helpful replays.😃