Recommended Oil for a 3.0SC 1981
- Thread starter almattock
- Start date
Engines of our age need a fairly high zinc content to protect surfaces such as cams etc and many oils have insufficient. Even some "Classic" oils have too low levels.
I have an article by Southern Classic Car Club about this, can't attach Docx files so I need to convert it to a pdf and then I'll get back to you.
I have an article by Southern Classic Car Club about this, can't attach Docx files so I need to convert it to a pdf and then I'll get back to you.
oilman
New member
almattock said:
We often reccomend 20w-50 or 15w-50. As already mentioned a good slug of ZDDP is good. You can use mineral, semi or full synthetic the choice is yours.
My top choices would either the Valvoline VR1 20w-50, a very shear stable performance mineral oil with good ZDDP or the Fuchs Titan Race Pro R 15w-50, this is an ester synthetic with good ZDDP and well proven in air cooled Porsche engines on and off track.
Cheers,
Guy
I thought I had already posted this.. perhaps in the wrong place..Duh!
Not suggesting an alternative, just passing the time thinking in type.. (-:
Many years ago I was running my SC on Shell as recommended on the sticker within the engine bay, and remember well Porsche then changing the oil spec to Mobil 1. I wrote to PCGB and received a detailed correspondence in return relative to my concerns, the end result I used Mobil 1 from then on.
I have read in more recent times of knowledgable rebuilders who modify/improve aspects of Porsche engines recommending a different grade of oil on higher mileage engines and the name Millers springs to mind.
It was the engineering ideals, build quality and race winning performance that attracted me to Porsche, thus when it came to lubricant choices and much else, I went with the their recommendations for my then 80K mile SC. When things went to water cooled on the flat six,, well I guess priorities at Porsche may have altered by then..?
Not suggesting an alternative, just passing the time thinking in type.. (-:
Many years ago I was running my SC on Shell as recommended on the sticker within the engine bay, and remember well Porsche then changing the oil spec to Mobil 1. I wrote to PCGB and received a detailed correspondence in return relative to my concerns, the end result I used Mobil 1 from then on.
I have read in more recent times of knowledgable rebuilders who modify/improve aspects of Porsche engines recommending a different grade of oil on higher mileage engines and the name Millers springs to mind.
It was the engineering ideals, build quality and race winning performance that attracted me to Porsche, thus when it came to lubricant choices and much else, I went with the their recommendations for my then 80K mile SC. When things went to water cooled on the flat six,, well I guess priorities at Porsche may have altered by then..?
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