I've noticed on the several 1990's Corollas that I see regularly that the windshield washer fluid bottle deteriorates. Furthermore it always deteriorates on the top of the bottle nearest the passenger side of the engine compartment. Since I live in southern New Mexico, I don't this this is due to freezing. I think it must be due to heat or something corrosive.
I replaced my 90 Corolla's deteriorated washer bottle with a genuine Toyota washer bottle. Within two years the top of the new bottle has whiteish places on it and the plastic is brittle and breaks away. Anyone else noticed this kind of thing?
Are you using good water?
Over summer hear we get up to 30-40+ c* days and ours seem to be fine
Maybe thers somthing in your water try using distiled water.....
I used one bottle of pre-mixed washing solution that I got at an auto parts store. If it was the solution itself, I must wonder why didn't the bottle deteriorate near the bottom. It's the top of the bottle that gets pitted. (At least that's convenient since it doesn't leak.) It gets pitted on the passenger side-most part of the top. And the damage seems worse on the outside of the bottle than on the inside.
Can you see any difference in the plastic used for the washer fluid and the plastic in the coolant overflow bottle? The coolant overflow bottle hasn't deteriorated in any of the AE92's.
Well window washing fluid can contain methanol, which is alcohol, which can attack plastic too. But even as such, the material between the two containers feels different.
I notice that the washer fluid was sold in a typical thin plastic bottle. Even alcohol is sold in plastic bottles nowadays. Do these go bad in two years? The theory that it is the washer fluid alone causes the deterioration is not impossible if Toyota has made some unusual and unlucky choice of plastic. It seems more plausible to me that something else is causing the problem.
Might be a different plastic type than the washer bottle. And alcohol drinks are not methanol, but ethanol, big difference, other will get you drunk, the other will kill you.
I've noticed few plastic bottles that dont last with certain chemicals, so it can be that the plastic in the washer tank goes bad over time with use. Mines all yellow, but it hasnt cracked yet.
Yup, pollution, heat, etc contribute to it too.
Most bottles I saw in the philippines were in horrible condition.... ones in finland are in good condition. Temperature and pollution are quite different compared with each other.
Pollution! I don't know if it is pollution but that brings up an idea. The part of the lid that deteriorates is nearest the wall of the engine compartment. I assume rain water than washes off the hood goes down into that area. I've never thought about what the flow of water in the engine compartment must look like during a rain. There is no gasket around the hood, so I suppose it runs down the side of the engine compartment walls.
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