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#1
09-13-2006, 02:25 AM
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Zerex G-05 = MB Coolant = Mopar HOAT?
Reading thru the text article recommended for new '87 300D owners, I came across the paragraph discussing coolant. The author stated that the MB coolant would be yellowish or clear, and that the aftermarket equivalent was Zerex G-05.
For my '05 Jeep CRD, factory fill is Mopar HOAT. Doing some checking, it seems both Ford and DC went with the HOAT type antifreeze. Difference is, factory fill in Ford's is a yellowish tint, and DC has their factory fill dyed pink. And here as well, Zerex G-05 is listed as the aftermarket equivalent. If Zerex G-05 is listed as the aftermarket equivalent in both cases, that seems to indicate that both the '87 300D and '05 CRD use a HOAT type coolant ('05 Jeep CRD is a diesel for those that don't know). If that's the case, that Ford, DC, and MB are using the same HOAT formula, would that mean you would be able to use either Zerex G-05, MB factory fill, Ford factory fill, or Mopar HOAT in the '87 300D? That would greatly simplify things, being able to use the same antifreeze for both diesels. Matter of fact, I already have a 1 gallon jug of full strength Mopar HOAT on hand just in case the CRD needs topping off.
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Just say "NO" to Ethanol - Drive Diesel Mitchell Oates Mooresville, NC '87 300D 212K miles '87 300D 151K miles - R.I.P. 12/08 '05 Jeep Liberty CRD 67K miles Grumpy Old Diesel Owners Club 
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#2
09-13-2006, 02:31 AM
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As far as I can remember the back of the Zerex container says it is a direct replacement for '02 and up fords, '01 (or so) DC, and all Mercedes.
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1979 240D- 316K miles - VGT Turbo, Intercooler, Stick Shift, Many Other Mods - Daily Driver 1982 300SD - 232K miles - Wife's Daily Driver 1986 560SL - Wife's red speed machine
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#3
09-13-2006, 03:09 AM
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Next question would be, where in the bloody h### can you buy Zerex antifreeze? None of the auto stores locally seem to carry it any more, just Prestone. Certainly don't feel like paying thru the nose at a CJD or (god forbid) Ford dealership.
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Just say "NO" to Ethanol - Drive Diesel Mitchell Oates Mooresville, NC '87 300D 212K miles '87 300D 151K miles - R.I.P. 12/08 '05 Jeep Liberty CRD 67K miles Grumpy Old Diesel Owners Club
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#5
09-13-2006, 09:12 AM
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NAPA carries g-05. but m-b coolant is not a HOAT type coolant. if you want to make things simple, refill everything with zerex. i plan on doing the wifes LHS when i do the benz.
heres a thread to read. StarTuned article on Mercedes antifreeze - MUST READ
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1984 123.193 372,xxx miles, room for Seven. 1999 Dodge Durango Cummins 4BTAA 47RE 5k lb 4x4 getting 25+mpgs, room for Seven. Last edited by mobetta; 09-13-2006 at 09:14 AM. Reason: post link
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#6
09-13-2006, 10:55 AM
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The local kragen stocks up on zerex, one time it was even on sale with a coupon for $5.99 a jug. Otherwise i think the MB dealer wont charge you too much on it....but then again it is a dealer!
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Current: 05 E320 CDI 07 GL320 CDI 08 Sprinter 05 Dodge Cummins 01 Dodge Cummins Previous 2004 E55 AMG 2002 C32 AMG (#2) 1995 E300 1978 300D 1987 300D 2002 C32 AMG(blown motor :[ 1981 300SD 1983 300SD 1987 300SDL 2002 Jetta TDI 1996 S420 1995 S500 1993 190E 2.6 1992 190E 2.3 1985 190E 2.3 5-Speed
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