Lagonda Rapiers

2 minute(s) of a 484 minute read

oing back to an earlier discussion regarding suitable oils for Preselector gearboxes. I had previously stated theat I have for some years now used the same oil as I used in my Lagonda's engine. Penrite HPR 30 in winter and 40 in summer. Having now discovered a 5 litre bottle hiding in my garage I can give you the relevant information.
Penrite do not use any "Friction Modifiers" in their engine oil. They do use a small percentage a "Zinc Rich" additive as protection against  "wear, corrosion,  oil oxidation and  sludge formation". This is very little different to the earlier HPR range of engine oils and in my opinion still suitable for use in my Lagonda's gearbox.
I earnestly believe that the use of this oil in my gearbox would NOT have had any detrimental effect on the gearboxes ability to transmit drive to the rear wheels.
I will be continuing to use the same oil in both the engine and gearbox for the Lagonda once it returns to Australia and I have back in driveable condition.
The Good news is that provided there are no more hold-ups, the Lagonda should now be back in Australia (and home) by "mid November".
For anyone interested I have attached a scan of the back label from a current 5 Litre oil container.  Unfortunately for the shipping watchers, I do not have a name of a Vessel as yet.

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