Should be OK, 10w/40 is commonly used overseas.

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DrMini- 1970 wasaMatic 1360, Mk1S crank, 86.6HP (ATW) =~125 @ crank, 45 Dellorto (38 chokes), RE282 sprint cam, 1.5 rockers, 11.0:1 C/R.

I emailed Penrite and got to communicating with a tech. I am using Penrite Classic Light specifically designed for layed up engines. A good thread though becasue i have registered that particular car last month and its headed for a fresh oil change.

It may be dearer but i got the Penrite on special. Its a good point to buy Australian made.

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..still waiting for the Italian Job sequel to see if the bus went down

I find this thread quite interesting, I have always used the HPR30 since getting my mini, but maybe I should try something else.

My engine and box is a little sick and when cold it sometimes refuses to go into second gear and clonks/crunches into others even when crawling - the box itself isn't great but it has gotten worse since the weather has started cooling down.

On a manual 4 synch box, would the difference between 20w60 (hpr30) and 20or25w50 alter the smoothness of gear change? Or is it very minimal? I'm just trying to nurse it until the other engine can be built

James

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I wish I had some sort of witty quote in my signature

I think most 20W (whether /50 or /60) oils are much the same when cold. I found the Castrol Edge 25W/50 to be a bit stiffer on the shifting in winter, but at $50 a can I don't use it now.

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DrMini- 1970 wasaMatic 1360, Mk1S crank, 86.6HP (ATW) =~125 @ crank, 45 Dellorto (38 chokes), RE282 sprint cam, 1.5 rockers, 11.0:1 C/R.

Repco 30% off sales help. I usually stock up when these weekend specials are advertised

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1969 Cooper "S"
1967 Mini Deluxe
1973 Clubman Van (the fleet spare)
1978 ex 1275 LS ("Wizard" Eaton Supercharged)
2015 HSV GenF GTS(occasional drive & tow car)
2019 MINI F55 Cooper S

Whats a bottle of the Penrite Mini oil worth?

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Penrite and Gulf Western are the same oil. Both come from the same plant and are owned by the same parent company.
Cheers Pete

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A recent study found the average Aussie walks about 900 miles a year
Another study found Aussies drink, on average, 22 gallons of alcohol a year
That means, on average, Australians get about 41 miles per gallon

Kind of makes you proud to be an AUSSIE