Grumpa72

2004 Lexus RX330

Lots of posts about coolant but not thermostat replacement or am I not seeing anything in the searches? Also, recognizing that there are many quality aftermarket coolants, does anyone know which comparable one is used by Toyota/Lexus?

Thanks.

grumpa72

grumpa72@gmail.com

evident

I wouldn't use aftermarket coolant for any toyota or honda.

Grumpa72

Recognizing that auto manufacturers don't produce their own coolant, tires, lubricants or oil, there is nothing wrong with using name brand products. My BMW dealer sells oil specific for my car but you can be sure that they don't manufacture it, they just relabeled it. There are at least three or four types of coolant you just have to know what your vehicle uses.
H.O.A.T, and others.
http://www.valvoline.com/our-products/antifreeze-products
https://www.google.com/search?q=types+of+antifreeze&oq=types+of+antifreeze&aqs=chrome..69i57j0l3.3173j0j4&client=ms-android-att-us&sourceid=chrome-mobile&ie=UTF-8

I guess I answered my own question.😉

Lexuswiz

iTrader: (1)

You can follow the Toyota guides for the 3MZ-FE engines on toyotanation as I couldn't find one myself here for the RX's. The Highlander/Sienna will probably be the closest matches.

But I recall Pentafrost A1 and Zerex Asian works just as well as Toyota Red/Pink.

mandyfig

How easy is it to replace the thermostat? My Lexus Tech Tech says, not easy.

05RX330AWD

Unlike the old Ford 302's where the thermostat hose- housing stares you in the face when you opened up the hood.

Grumpa72

I was looking for the correct engine designation Thank you . There are enough YouTube videos to tell me that this isn't like my old Corvette and "in and out" in 15 minutes. One site says 2-3 hours.

05RX330AWD

Hopefully this will help....

Grumpa72

Yep. That is one of the YouTubes that I had seen.

Lexuswiz

iTrader: (1)

Yeah it's nothing like my 4 cylinders, that's 15 minutes in and out. I still need to do this myself, have only been doing the research to see what it takes.

fastnoypi

besides using toyota pink... Zerex Asian or Pentosin Pentofrost A1/A4 are compatible and widely used substitutes for coolant meeting Toyota/Lexus specs.

JoeInHNL

The above video is for a RX350 and is not even close for a RX330. The thermostat on the 330 is located on the back (driver's side) of the engine. The thermostat housing is at the end of the inlet pipe that is connected to the lower radiator hose.

alchemist

iTrader: (1)

I changed my thermostat during my timing belt/water pump DIY but I didnt really mention it:

https://www.clublexus.com/forums/rx-...iy-w-pics.html