[Healeys] Oil again

[Oudesluys]

One has to make a distinction here. If an engine is properly 
"re-manufactured" or may be "blue printed" using modern tolerances, 
finishes, hardening procedures, materials for bearings, pistons, valves, 
valve seats, seals and gaskets, upgraded oil pump, upgraded oil filter 
and the like, the engine will most likely last much longer than a brand 
new original engine (if you could get hold of one) and one probably 
could use modern oils. It should not need another overhaul for a long 
time, most modern engines last well over 300.000 miles if maintained 
properly.
If the engine is rebuild using the factory tolerances, use the specified 
oil. It is likely that the engine will need another rebuild after 
60-100.000 miles as would an original engine.

In the past I had many experiences with rebuilt engines of various cars 
and they were of similar quality as the original engines. However, these 
days you hardly ever come across
rebuilt or re-manufactured engines except for antique and classic cars 
and it is very rare that they will exceed 100.000 hard driven miles 
within ones lifetime so it is hard to say what is durable or not. Single 
observations are of no value, to make a valuable judgement you need 
documented numbers and lots of it.

So what do most people do? They adhere to the specified original 
maintainance, i.e. 20W50 or single grade for the oldest vehicles and 
rarely get involved in experiments that could be very costly if you get 
it wrong.

Kees Oudesluijs




Bob Brown schreef op 24-6-2015 om 13:40:
> Andy
> About 5 years ago we had a club member that had his engine rebuilt by 
> a very reputable shop. Following the rebuilt the club member insisted 
> that the shop put Molbil-1 in the engine. The result was another 
> rebuild with in 3 years. Don't know exactly what was the problem but 
> the cam was damaged.
> Bob
>
> ------------------------------------------------------------------------
> *From:* Andy Thorp <bce257 at yahoo.co.nz>
>
> *Subject:* Re: [Healeys] Oil again
>
> Out of  interest, given all this oily discussion lately- has anyone 
> actually worn out a reconditioned engine from normal road driving? I 
> rather suspect you could put just about any modern oil in a Healey 
> combined with a proper filter and it'd go for a whole lot more miles 
> than an original one ever did on monograde.
>
> Andy.
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