wile we are talking about cooling systems deposits: how do you remove them ?
I am possibly going to buy a used car soon, the Toyota I am thinking of has a history of "gray sludge" accumulating in the cooling system, and overheating in some cases, surely the previous owner/shop would have used tap water of an unknown quality (if the coolant was ever even changed) and there is likely to be rust and scale in the iron block and aluminum head along with this “gray sludge”
are cooling system flushes safe? The most common product I see in auto stores for cleaning cooling systems is Prestone “Super Flush”, is it effective in removing deposits? I have used it in the past and haver never seen an improvement from what I can see in the radiator from the cap but perhapses it does help the block? Perhapses I should have left it in longer?
Is there some other product I should consider? Or none at all?
I am possibly going to buy a used car soon, the Toyota I am thinking of has a history of "gray sludge" accumulating in the cooling system, and overheating in some cases, surely the previous owner/shop would have used tap water of an unknown quality (if the coolant was ever even changed) and there is likely to be rust and scale in the iron block and aluminum head along with this “gray sludge”
are cooling system flushes safe? The most common product I see in auto stores for cleaning cooling systems is Prestone “Super Flush”, is it effective in removing deposits? I have used it in the past and haver never seen an improvement from what I can see in the radiator from the cap but perhapses it does help the block? Perhapses I should have left it in longer?
Is there some other product I should consider? Or none at all?