[MBZ] Coolant Question

[Marshall Booth]

R A Bennell wrote:
> And does G-05 mean something or not? For example, it has been said the Prestone is not approved. Does Prestone have
> a G-05 designation or not? If it does, then what does the designation mean or not mean?

G-05 is/was the actual Mercedes anti-freeze formula (not just the 
specification). Mercedes and Zerex G-05 are made using the Mercedes 
formula. They both meet the Mercedes specification (not surprising since 
they are both made in the same plant and on the same lines using the 
same formula). There are other anti-freeze makers that make anti-freeze 
that meets the Mercedes specification and is thus Mercedes approved. 
Until a few years ago, none of those except the Mercedes branded product 
were available in the US. Since Ford and Chrysler started requiring 
coolant that met the Mercedes spec, some US manufactures have started 
making appropriate products that are being approved my Mercedes (and 
other manufacturers). GM and some of the Japanese car makers use a 
different specification and the different types should NOT be used 
interchangeably. Prestone is trying to make one type that fits all - and 
that doesn't cut it.

Marshall
-- 
	  Marshall Booth (who doesn't respond to unsigned questions)
       "der Dieseling Doktor" mbooth at pitt.edu
'87 300TD 182Kmi, '85 190D 2.0 161Kmi, '87 190D 2.5 turbo 237kmi, '84 
190D 2.2 229Kmi (retired)