[Healeys] oil choices

Oudesluys coudesluijs at chello.nl
Sun Jul 1 16:05:49 MDT 2012


We do have 35 degrees C here every so often. Also -25 C.
Average summer temp around 20 C. Average winter temp. around 0 C.
Cheers,
Kees


Op 1-7-2012 18:36, Chris Dimmock schreef:
> -10? c? Yep. I don't have to deal with that. That's not a hot climate???.
>
> Isn't the max average temp in Amsterdam 22 c?
> That's far colder than a Sydney Winter.
> I said. "in a hot climate"
> -10 to 22C??? That's cold.
> Kees. Please read what I write.
> Run your car at 5,500 - 5,900 rpm consistently for 15 or 20 minutes at nominal air temperate of 38C, and a track/road  temp of about 45c and then we can talk further about oil pressure and oil temperature.
> You might need to move? To test your theories?
> I said. "in a hot climate".
> It doesn't generally get to minus 10c in a hot climate??
> If I ever want advice on driving to the snow in winter, I'll call you.
> Hot climate.
> Deal?
> Sincerely.
> Chris
>
>
>
> Sent from my iPhone
>
> On 02/07/2012, at 1:50 AM, Oudesluys <coudesluijs at chello.nl> wrote:
>
>> Chris,
>> I run my engines hotter than usual with a radiator thermostat opening of around 85-90 degrees Celcius, hot or cold conditions, in NL between -10 to 35 degrees C.
>> Kees Oudesluijs
>>
>>
>> Op 1-7-2012 17:25, Chris Dimmock schreef:
>>> Ha!!!
>>> I'll quote you on that, because you live in the Netherlands.
>>> You missed my reference to "a hot climate".
>>> LMFAO.
>>> Yep. On a cold winters day, somewhere in Australia, you're probably right......
>>> ;-)
>>> Chris
>>>
>>> Sent from my iPhone
>>>
>>> On 01/07/2012, at 1:53 AM, Oudesluys <coudesluijs at chello.nl> wrote:
>>>
>>>> Chris,
>>>> It has nothing to do with the type of engine, modern or old, cast iron or alloy, more with resistance in the internal oil ways of the engine. Some engines have long and/or precious small diameter oil ways. These kind of engines are at risk. It is not all pressure you need. You also want flow.
>>>> Kees Oudesluijs
>>>> NL
>>>>
>>>> Op 29-6-2012 14:14, Chris Dimmock schreef:
>>>>> Kees, with all due respect, the theory is correct, if you are talking about a modern twin cam, aluminium, multivalve engine.
>>>>> But It isn't if you are talking about 500 plus pounds of cast iron heatsink with a single flat tappet cam in the block. In a hot climate,
>>>>> I've been running HPR40 or HPR50 - depending on the season, and the cars use - for 12 years, with no problems to date. Head hasn't been off, just plugs, points, timing, tappets. Usual maintenance stuff.
>>>>> Oil pressure today was 55- 60 lbs at cold idle. 60 lbs at 4,500rpm. 40 lbs at hot idle. That's today - I just drove to Wakefield Park from Sydney - with HPR40.
>
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-- 
Kees Oudesluijs
Dorpsstraat 183
2995XG Heerjansdam
T: 078-677 1233
E: coudesluijs at chello.nl

Technische commissie Jensen Healey en GT
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