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Re: Are Mobil & Pennzoil Misleading Australians? ALL 93

posted by  someone claiming to be George Antony on  Tue Jul 10 17:17 CST 2001 [RELATED]

Sorry it did not work out. I have it in a pdf, if you send me your address I will send it to you.

Basically, it says that synthetics fundamentally differ from dyno oil and the numbers are only guides - you must check the letters. It does not mention 5W-50, only 5W-40 and similar differences, but the implication is that it should be OK. My reasoning is that these companies know what they are doing, and would not want to risk lawsuits with a clearly unsuitable product. Oz is not quite a third-world backwater where you can dump anything.

There was also a comparative test in Oz by some hot-rod mag that found BP's Visco 5000 the best, ahead of Mobil 1. Now, that is, from memory, a 0W-40, and not even true synthetic (hydrocracked base stock against the real stuff). I'll try to dredge up a copy of that too.

That said, I perceive an improvement in cold idle and throttle response even with Mobil's synthetic blend (240GL, 1988 model, bought with 290,000 km in February), and from the next change I'll go whole hog now that I know that the motor does not use oil and does not leak.

George Antony

george.antony@cse.csiro.au





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