38 votes
My last vehicle was an RX350 which I had for 14 years with 115,000 miles before trading it in and had zero leaks. I flushed/replaced the coolant at 100,000.
Proton original radiator is of very poor quality. Rust prone. Change it as soon and use premixed Toyota Coolant bought from Toyota Service Center to avoid fakes. Toyota SLLC and an aftermarket radiator will last the remaining lifetime of your Saga.
Pink colored Toyota Coolant. My friend is a former mechanic and he recommended this over Honda's.
Mods: None, staying showroom stock. TCL Buyers Guide Negatives / future ownership issues: A) Valley Plate coolant leak: Look for pink crystals (dried coolant) underside of engine near where transmission meets up w engine. Also check upper radiator hose where it connects to radiator. Workaround: 50k/5 year coolant maintenance.
Toyota coolant, the red / pink stuff is some of the best coolant available.
Just use toyota long life coolant je bro. Applicable to all car but buy the original one at toyota SC. Many prefered this coolant since it is good to engine cooling system
I currently just drove 20hrs down south to Florida and the engine level has stayed slightly below half level as it should be the entire trip. Still in Florida driving around the intense heat and sun and everything is still going well.
You can add distilled water as a temporary option if you can't find Toyota pink coolant.
for choosing coolant, if just topping off, i use whatever's already inside. so if it's factory coolant, use Toyota OEM coolant.
The green does "work" but it wont help the health of the engine long term as there are chemicals in the Toyota red which help protect the engine, fittings, rad etc. Buy the right stuff from Toyota and it'll last ages, the wrong stuff will screw things up long term.
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The brand is registered in Japan.
In March 2026, PartReview users have a positive opinion of OEM Toyota antifreeze.
PR Score — 89 out of 100, based on 12 reviews and 38 votes. 10 positive reviews, 2 neutral reviews, 0 negative reviews. Average rating — 4.5 (out of 5). Vote balance: 34 up, 4 down.
In the ranking of the best antifreeze this part is at position 7, behind OEM BMW and OEM Honda , but ahead of OEM Mazda and OEM Volkswagen.
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There are 8 comparisons of OEM Toyota antifreeze with other manufacturers on PartReview.
In particular, see which antifreeze are better: OEM Mazda or OEM Toyota, OEM Toyota or OEM Honda, OEM Volkswagen or OEM Toyota, OEM BMW or OEM Toyota, VALVOLINE or OEM Toyota .
