L series preferred oil brand and grade?
Posted 22 April 2011 - 08:30 AM
Posted 22 April 2011 - 08:55 AM
Current tarmac rally engine was rebuilt in early 2006 & is still going strong (using Penrite HPR30)
NOTE: I do change the oil regularly (3 to 4 times a times a year) as the car is not regularly driven on road etc. mostly track work.
You may be surprised BUT the L series (when driven hard) do cause engine oil temperatures to rise significantly - so oil quality is critical.
I have never noticed the Penrite oil to smell "burnt" but change regularly as it is still a "mineral oil".
Posted 22 April 2011 - 09:40 AM
I know (knew) the Motul rep quite well, i discussed the zinc requirement for older engines with him and he assures me that the ester base oil is a suitable alternative.
Posted 22 April 2011 - 10:39 AM
I also am using Penrite HPR 30. Where I live the summer temperatures are above 40 degrees and I want maximum protection. If I were living in a colder climate I would be using the HPR 15 (semi synthetic) if the engine was either rebuilt or in good condition. These are my thoughts for a street car.
Happy and safe Easter everyone.
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