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Hi George,
I share your belief that these companies know what they are doing. In my mind that would be maximising profits.
How the marketing of 5W-50 in Australia helps them do that only they would know.I suspect it does not go hand in hand with the Australian motorist's best interest.
This weight is not recommended by the manufacturer of ANY car sold in Australia. Maybe Mobil and Pennzoil know better. I am seeking their reasoning.
My car has been using Mobil 1 exclusively since my ownership. I have used Mobil 1 because of my belief that it was better to use full synthetic, even if it was the wrong weight. The engine doen't use oil, but it blackens quickly, even after 7 oil changes with Mobil 1.
Thanks for your response George. I plan to continue my approaches to Mobil Australia and seek the NRMA's support.
We've just sold an 82 Toyota Cressida and bought an 88 240GL. In the process of baselining it. Next task is to rebush the suspension, followed by getting the air con working. Five litres of Mobil S synthetic blend has been purchased for the next oil change.
Take care,
John H from DOWNUNDER johnhr30@yahoo.com
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