Coolant Choice for a 2002 Toyota Yaris T-sport

Toyota Passenger and Sports Car Forums Toyota Yaris/Scion iA/ Echo/ Vitz
1

Hi, I’m over here in Europe with a Japanese-built 2002 Yaris T-sport, and I’m about to do a coolant change myself. The choice of coolant is an enormous head-scratcher. The manual states to use Toyota Long Life Coolant, which is hard to get here in Europe. I found one source that sells it for 75 euros. I have already ordered an aftermarket G11 coolant for 25 euros, mostly because the previous coolant is also G11. Not that I’m not going to do a full flush because I will. Is it worth buying an ‘asian’ coolant? See: Coolant Discussion

“It is indeed surprising for me how expensive Toyota coolant is. It costs 2x more in Europe than the USA or Asia. Asian cars use phosphate HOAT instead of silicates HOAT like in VW, Opel, Benz, BMW, or Volvo.”

Is it worth worrying over these chemicals? Should I use aftermarket or original Toyota pink coolant? Also, should I just hop on over to G12? It seems my 1NZ-FE engine has aluminum parts. Please advise. Thank you.

2

I used some general pink coolant, G12+, I think.

3

Aftermarket ones will work assuming it’s a copy of Toyota pink coolant. If it has silicates, it’ll still work but best to avoid/change it.

There are a lot of aftermarket ones which are compatible with Asian vehicles.

4

@Haze
Thanks, this along with the other very general information on Asian vehicles and phosphate have steered me to a silicate-free ‘low phosphate’ ‘Asian car compatible’ coolant. No mention of G11 or G12, does that even matter? Assuming the flush gets everything out. I’m also quite late on a coolant change due to misinterpreted service info. Thought it was done, but no, it’s been 3-4 years now. The coolant always looks perfectly healthy though, even though by now it probably has zero anti-corrosive properties left.

5

@Tobin
It’s fine. And yeah, these Yaris’s are quite clean when it comes to changing coolants and oil, etc. You’re good, don’t worry.

6

Hi again, I think I found the perfect coolant for my engine. Looking at the documentation on the 1NZ-FE engine, I am supposed to use a coolant with properties similar to Toyota genuine Super Long Life Coolant (SLLC). Looking at this coolant, I see the following characteristics:

  • Ethylene glycol
  • Non-amine
  • Non-nitrite
  • Non-borate
  • Low Phosphate
  • No silicate.

SLLC is a “Hybrid organic acid technology (HOAT),” (coolant with long-life hybrid organic acid technology is a combination of low phosphates and organic acids.)

I found this coolant which almost perfectly matches SLLC: Low Phosphate Coolant with the only difference being that SLLC calls itself a HOAT, while the MPM coolant calls itself P-OAT, where P stands for Phosphate. I don’t think I will be able to come to a better conclusion.

7

Use the Toyota coolant. Quality product. Toyota knows best.