Penrite Oil HPR 40 25W-70 (Mineral)

[jusm]

Hi,
Can anyone see any downside from using this full zinc 25w-70 oil?

Australian conditions so not so cold in the mornings. I like the idea of the high zinc content and extra 10 for an old engine, but was just wondering if there is any potential downside?

On the website it is one of the recommended oils for the Stag.

http://www.penriteoil.com.au/products.php?id_categ=1&id_brand=1&id_products=5

Product Benefits:

EXTRA TEN provides better engine protection
FULL ZINC additive package for superior engine wear protection. (approx. 1500 ppm)
GREATER engine protection than 25W-60 grade oils
Reduces oil consumption and maintains oil pressure
Longer engine life
Reduced high temperature engine deposits
Reduces wear by controlling engine wear
Suitable for competition and on road use
Race proven product

Cheers
Justin

[Marco Polo]

Hi Justin,
It was recommended to me by Greg Tunstall in Brisbane, i have been using it for the past seven years, with an annual oil and filter change with no ill effects. I only do about 5000 Kms per year.
Regards Raoul

[jusm]

Hi Justin,
It was recommended to me by Greg Tunstall in Brisbane, i have been using it for the past seven years, with an annual oil and filter change with no ill effects. I only do about 5000 Kms per year.
Regards Raoul

Raoul, thanks for that.
Seems like a no brainer then.
I assume the engine needs to work a fraction harder but the extra protection would be well worth it.
Cheers
Justin