Is there a premium coolant? (updated with pics)
Is there a premium coolant? (updated with pics)
CL Community Team
Joined: Apr 2004
Posts: 17,318
Likes: 203
From: Miami, Florida
CL Community Team
Joined: Apr 2004
Posts: 17,318
Likes: 203
From: Miami, Florida
Can't get it here 
But I have buddy that told me about it and he is going to put it in his RX7 (he is getting engine upgrades), he heard from other RX7 owners about this stuff and they raved about it. There is a chemical you have to use to remove all of the water in your system before using the stuff.
But I have buddy that told me about it and he is going to put it in his RX7 (he is getting engine upgrades), he heard from other RX7 owners about this stuff and they raved about it. There is a chemical you have to use to remove all of the water in your system before using the stuff.
CL Community Team
Joined: Apr 2004
Posts: 17,318
Likes: 203
From: Miami, Florida
Going to let you in on something, RX300 forum guys know this, I use 100% coolant (no water) in my RX300 and I have the TRD T-stat and a Tom's Radiator Cap (going on about 2 years now). I also add a 2 bottles of Nology's NotHot or 1 bottle of Redline's WaterWetter (depending on what I can get my hands on), though Royal Purple's Purple Ice I want to try next. Reason for this is that where I live at high altitude, 8,000 feet where I live, water evaporates much quicker up here (we're hotter than Denver, too) and I had severe issues when I first moved up here with losing coolant, but no issues since. It is quite common to see people top off their coolant/water at gas stations.
Mike, why not use toyota's coolant?
I know other cars can get away with using aftermarket coolants, but Toyota (along with Honda) have their own dedicated coolants. Toyota coolant is specially developed with a non-silicate formula. Silicate is an abrasive inhibitors that was developed to help prevent corrosion from the metal block. The downside is that the abrasive particle will abrade the water pump seal, which can cause premature WP failure and leaks.
Plus the silicate formula found in many aftermarket coolant does not last long. Eventually the protection wears off and you get hot transport deposition corrosion. This is why coolant is recommended to be change every so often because despite the color, it's hard to tell whether the coolant is working like it should (in an aluminum block).
If anything, the lower temperature thermostat should help in your case of hard driving. As long as the coolant is fresh and the fans are working, you should be fine.
Then again, if you ever feel the need to increase your cooling capacity, go with an aftermarket oversized Supra TT radiator with the OEM supra fan setup. If it works good enough for those 600hp+ guys, it should work well for you.
I have no experience with non-Toyota coolants. Other CL'ers on here might have good experience with aftermarket coolants so dont take my words for it.
I know other cars can get away with using aftermarket coolants, but Toyota (along with Honda) have their own dedicated coolants. Toyota coolant is specially developed with a non-silicate formula. Silicate is an abrasive inhibitors that was developed to help prevent corrosion from the metal block. The downside is that the abrasive particle will abrade the water pump seal, which can cause premature WP failure and leaks.
Plus the silicate formula found in many aftermarket coolant does not last long. Eventually the protection wears off and you get hot transport deposition corrosion. This is why coolant is recommended to be change every so often because despite the color, it's hard to tell whether the coolant is working like it should (in an aluminum block).
If anything, the lower temperature thermostat should help in your case of hard driving. As long as the coolant is fresh and the fans are working, you should be fine.
Then again, if you ever feel the need to increase your cooling capacity, go with an aftermarket oversized Supra TT radiator with the OEM supra fan setup. If it works good enough for those 600hp+ guys, it should work well for you.
I have no experience with non-Toyota coolants. Other CL'ers on here might have good experience with aftermarket coolants so dont take my words for it.
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CL Community Team
Joined: Apr 2004
Posts: 17,318
Likes: 203
From: Miami, Florida
The same reason guys like to use the German Castrol, the same can be said about the BMW Blue Anti-Freeze. Great stuff at 20 bucks a gallon.
It is a lifetime fluid..
Or you can opt for Amsoil anti-freeze.
AMSOIL Antifreeze & Coolant provides even greater benefits:
It is a lifetime fluid..
Or you can opt for Amsoil anti-freeze.
AMSOIL Antifreeze & Coolant provides even greater benefits:
Lasts Longer
AMSOIL Antifreeze & Coolant contains a proprietary poly organic acid technology. It eliminates the need for supplemental coolant additives and recharging cooling systems. AMSOIL Antifreeze & Coolant provides extended service life in all gasoline and diesel vehicles. It can be used for seven years or 250,000 miles in passenger cars, light-duty trucks, vans and recreational vehicles. It lasts seven years or 750,000 miles in over-the-road diesel trucks. Also for motorcycles, ATVs, snowmobiles and closed marine applications. AMSOIL Antifreeze and Engine Coolant lasts longer than conventional products.
Compatible With Other Fluids
AMSOIL Antifreeze & Coolant is dyed neutral yellow and is compatible with all ethylene and propylene antifreeze and coolant formulations on the market, including DEX-Cool®, Sierra® and Zerex®. It is also compatible with fully formulated diesel anti-freezes and other organic acid technology (OAT) and hybrid organic acid technology (HOAT) formulations.
Stops Leaks
AMSOIL Antifreeze & Coolant adheres to metal. It self-seals hairline cracks in welds and seams to prevent leaks, without additional stop-leak products or fibrous materials.
Prevents Metallic Corrosion
Independent tests reveal AMSOIL Antifreeze & Engine Coolant surpassed standards for metallic corrosion. It plates metal to protect even when exposed to acids and salt spray. Standard allowances for loss in aluminum and solder are less than 60 mg. AMSOIL Antifreeze & Engine Coolant lost 0 mg in aluminum and less than 6 mg in solder.
Standards for iron, steel, copper and brass allow a maximum loss of less than 20 mg. AMSOIL Antifreeze & Engine Coolant never exceeded a 3 mg loss in any of those metals in a testing period that was run for 10 weeks, three weeks longer than required tests.
• Formulated for heavy duty and automotive applications
• Good for motorcycles, ATVs, snowmobiles and some marine applications
• Extended drain intervals
Up to seven years or 750,000 miles in Class 8 vehicles
AMSOIL Antifreeze & Coolant contains a proprietary poly organic acid technology. It eliminates the need for supplemental coolant additives and recharging cooling systems. AMSOIL Antifreeze & Coolant provides extended service life in all gasoline and diesel vehicles. It can be used for seven years or 250,000 miles in passenger cars, light-duty trucks, vans and recreational vehicles. It lasts seven years or 750,000 miles in over-the-road diesel trucks. Also for motorcycles, ATVs, snowmobiles and closed marine applications. AMSOIL Antifreeze and Engine Coolant lasts longer than conventional products.
Compatible With Other Fluids
AMSOIL Antifreeze & Coolant is dyed neutral yellow and is compatible with all ethylene and propylene antifreeze and coolant formulations on the market, including DEX-Cool®, Sierra® and Zerex®. It is also compatible with fully formulated diesel anti-freezes and other organic acid technology (OAT) and hybrid organic acid technology (HOAT) formulations.
Stops Leaks
AMSOIL Antifreeze & Coolant adheres to metal. It self-seals hairline cracks in welds and seams to prevent leaks, without additional stop-leak products or fibrous materials.
Prevents Metallic Corrosion
Independent tests reveal AMSOIL Antifreeze & Engine Coolant surpassed standards for metallic corrosion. It plates metal to protect even when exposed to acids and salt spray. Standard allowances for loss in aluminum and solder are less than 60 mg. AMSOIL Antifreeze & Engine Coolant lost 0 mg in aluminum and less than 6 mg in solder.
Standards for iron, steel, copper and brass allow a maximum loss of less than 20 mg. AMSOIL Antifreeze & Engine Coolant never exceeded a 3 mg loss in any of those metals in a testing period that was run for 10 weeks, three weeks longer than required tests.
• Formulated for heavy duty and automotive applications
• Good for motorcycles, ATVs, snowmobiles and some marine applications
• Extended drain intervals
Up to seven years or 750,000 miles in Class 8 vehicles
Lexus Champion
Joined: Feb 2002
Posts: 4,466
Likes: 13
From: Cali
I agree with GSteg, for the Toyota/Lexus cars, you simply cannot
beat the OE red stuff. We used it in my MR2 since my dad bought
the car new, and my folks also used it in their '84 Toyota Van
that they bought new and just sold a few years ago with 250,000
miles on it. No overheating problems, ever.
No need to reinvent the wheel on this. If anything, I might upgrade
to the TRD thermostat; also, on my GS4 I replaced the radiator
when we did the timing belt/water pump service, just as a precaution.
Many of the Japanese cars use radiators with plastic top tanks which
are known to split and fail after many years of use.
beat the OE red stuff. We used it in my MR2 since my dad bought
the car new, and my folks also used it in their '84 Toyota Van
that they bought new and just sold a few years ago with 250,000
miles on it. No overheating problems, ever.
No need to reinvent the wheel on this. If anything, I might upgrade
to the TRD thermostat; also, on my GS4 I replaced the radiator
when we did the timing belt/water pump service, just as a precaution.
Many of the Japanese cars use radiators with plastic top tanks which
are known to split and fail after many years of use.
this is a little off target, and i'm not trying to steal your thread, but i was thinking about ordering the trd thermostat........do i really need the radiator cap too????? seems like at the lower temp. there would be less pressure and your stock would work fine!
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The Toms unit was not in stock, so I ordered both TRD units just a few minutes ago.
My question is, can you install the thermostat yourself?
