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"MAG 1® Power Steering Fluid is recommended for reservoir top off, but not complete refill" wtf is that. Pass
Looks like it is for cars with bad leaking steering. If you have a good rack stay away from it.
Why Not for Complete Refill (Standard Formula):
High Concentration of Additives: The formula includes "unique additives to condition and swell dry and hardened seals".
Potential Over-swelling: If used as a complete refill, these agents might over-condition or excessively swell seals in a healthy, non-leaking system.
Last edited by ElatedPear129 February 8, 2026 at 11:44 AM.
I have some older vehicles where I occasionally siphon out the resovoir and put in some clean fluid. Yeah it's a half measure to actually draining the entire system properly, but I do it so often that I've never had problems. For this price and the type of maintenance I do this makes a lot of sense since everyone is saying it's not for a complete refill.
Make sure you know what you're doing if you have a Honda (or a manual steering rack, I guess.)
Valvoline Maxlife ATF has always worked for draining and refilling the reservoir every few years in my cars, but it used to be way cheaper, and I've never had a leak that didn't involve a hose or clamp. Especially not one that required a gallon of topping-off-only.
Make sure you know what you're doing if you have a Honda (or a manual steering rack, I guess.)Valvoline Maxlife ATF has always worked for draining and refilling the reservoir every few years in my cars, but it used to be way cheaper, and I've never had a leak that didn't involve a hose or clamp. Especially not one that required a gallon of topping-off-only.
Usually it involves snaking a new line through the engine haha. Take a lot of pictures before you attempt that one, alway a puzzle
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Looks like it is for cars with bad leaking steering. If you have a good rack stay away from it.
Why Not for Complete Refill (Standard Formula):
High Concentration of Additives: The formula includes "unique additives to condition and swell dry and hardened seals".
Potential Over-swelling: If used as a complete refill, these agents might over-condition or excessively swell seals in a healthy, non-leaking system.
This jug would last forever.
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Valvoline Maxlife ATF has always worked for draining and refilling the reservoir every few years in my cars, but it used to be way cheaper, and I've never had a leak that didn't involve a hose or clamp. Especially not one that required a gallon of topping-off-only.
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