Antifreeze
11-05-10, 04:01 PM
#1
Driver School Candidate
Thread Starter
Join Date: Nov 2010
Location: texas
Posts: 1
Likes: 0
Received 0 Likes
on
0 Posts
Antifreeze
Lexus dealer claims that the red antifreeze is a MUST or it will damage the motor???? Does anybody has any experience or recomendations about the green antifreeze, it says on the bottle that it is compatible.
Thanks
Thanks
11-06-10, 01:40 PM
#4
Compatible but depends on what drain intervals you also desire. Since I swap thermostats about every 30K, I have the system open so it is easier just to use the older mix. Cheap too since a jug of distilled water is $.99 and coolant is shoot, I forget. 
My Toyota guy said either but the extended didn't make sense since I will drain off a liter or so for the thermo swap and have to replace it...might as well do the whole routine. Doesn't take very long.
My Toyota guy said either but the extended didn't make sense since I will drain off a liter or so for the thermo swap and have to replace it...might as well do the whole routine. Doesn't take very long.
$26...I don't recollect paying that much. Must have gone up. 
Trending Topics
11-10-10, 12:55 PM
#10
Pole Position
Join Date: Jul 2010
Location: Mississauga Ontario Canada
Posts: 285
Likes: 0
Received 1 Like
on
1 Post
Assuming the car never ever overheats(or has a rise in engine temp) what harm could be done running on low antifreeze?
Last edited by lexuslspro; 11-10-10 at 07:42 PM.
11-10-10, 02:03 PM
#11
You could get pockets of air in upper parts of the cooling system, which might lead to a blown head gasket or other problems.
Last edited by 91LS400vgb; 11-10-10 at 02:04 PM. Reason: forgot quote
11-10-10, 04:21 PM
#12
If the coolant level is dropping, there is a leak somewhere. Might be subtle-small but finding out the hard way is 
and can be $$. If the system is otherwise good, there are two areas I notice with mine:
1. The pet **** on the radiator has an O-ring that after X miles becomes hard. Once you break that initial seal to say do a coolant change, it is often toasted. Replace it at the same time. Common O-ring but I don't have the exact size memorized. I've also broken one due to the nylon/plastic becoming brittle. The whole petcock is like $18 (Which for this part is $$.)
2. The reservoir cap gasket also deteriorates. ~$12
Both inexpensive fixes.
and can be $$. If the system is otherwise good, there are two areas I notice with mine:1. The pet **** on the radiator has an O-ring that after X miles becomes hard. Once you break that initial seal to say do a coolant change, it is often toasted. Replace it at the same time. Common O-ring but I don't have the exact size memorized. I've also broken one due to the nylon/plastic becoming brittle. The whole petcock is like $18 (Which for this part is $$.
)2. The reservoir cap gasket also deteriorates. ~$12
Both inexpensive fixes.
11-11-10, 03:26 AM
#13
Driver School Candidate
After I picked up my LS400, I later found out the cooling system was maybe half full of what looked like dirty water, thanks to a missing chunk of a well aged radiator cap gasket. The system seems pretty robust.
I can't think of any reason why any antifreeze would be a problem. Just make sure you thoroughly flush the system before swapping to a different one.From what I understand, some antifreeze additives can react with other anti-freezes, (especially when swapping from a propylene glycol based antifreeze to an ethylene glycol based one) so things can get ugly if you're not careful.
I can't think of any reason why any antifreeze would be a problem. Just make sure you thoroughly flush the system before swapping to a different one.From what I understand, some antifreeze additives can react with other anti-freezes, (especially when swapping from a propylene glycol based antifreeze to an ethylene glycol based one) so things can get ugly if you're not careful.
Thread
Thread Starter
Forum
Replies
Last Post
