Join Date: Jun 2003
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so the old green coolant is OK, right??
I am pondering changing coolant also. I have some I bought awhile back, but wnat to confirm that the 'old', meaning old type, green coolant is OK, proviided you add DCA..??
specifically, I have 2 types on hand:
Prestone, yellow bottle, 'patened dualaction formula', ingredients" ethelene glycol, diethtlene glycol, water, corosion inhibitors."" no silicates or DCA mentioned.... (have 3 gals of this.)
I also have on hand Prestone SCA precharged, low silicate formula, Black bottle, w/'penray' technology.. ingredients list as above plus 'defoamer, silicates, dye'.. (have 2 gals of this one)
both of these I have had on hand unopened for years.. do the have a shelf life??
I hope you can clear this up for me.. I remain confused on this topic...
also, these diesels are fickle SOBs ain't they!!!
PS: is it recommended to change the thermostat? Or if it aint broke do not fix it.??
96PSD; 165,000 Miles, 2WD, EC, LB, DPPI downpipe/ CAT eliminator, AutoMeter PYRO/Boost, K&N Filter, TruCool H7B tranny cooler & filter, Superchips 1700 programmer, BD ex. brake/BD autoloc. Two trans gauges
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an, return line. RBW Lilrocker hitch