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To all those that own pre-BMW Rolls-Royces & pre-Volkswagen Bentleys

For those who have not read the messageboard recently, please read these articles:-

1. ) http://rrtechnical.info/miscellaneous/coolantoatwarning.pdf that appears in the Australian Technical Library and again on our message board.

also
2.) Derek Harris's article

also
3.) In addition, I was also a victim of the OAT antifreeze last November(2008). I've spent 8 months arguing with the UK national retailer over their "Advanced Antifreeze - suitable for Older Vehicles". This caused me £6000.00 of repairs to the engines of 3 cars. In August this year (2009), they finally agreed to reimbuse me for my costs.

Winter will be coming again in a few months time in this part of the world.  Please take heed. if your car is pre BMW / Volkswagen - ensure you are using IAT not OAT. Nothing else will do.

If your car is filled with the wrong type of antifreeze, drain it out now, before it does so itself on its own accord. The different manufacturers use varying colours of dyes just to confuse us.

John Prescott


This is a dire warning concerning the change of formulae in various antifreeze products. Manufacturers have quietly moved to the new Organic Acid Technology (OAT) from the old Inorganic Additive Technology (IAT). That's fine for modern day cars BUT in most cases the antifreeze is totally unsuitable to our types of cars and their ages. Unless the antifreeze is specifically stated as IAT, you need to check with the manufacturer's technical department.

Whilst manufacturers say that the new technology is suitable for old cars, their definition of old means 10 years.

If you do not value your car, then of course, just ignore these articles so please, please read them.