Antifreeze

Post any Tech Tips or any matters and questions relating to upkeep
Post Reply
thdxb08
Posts: 13
Joined: Thu Jul 10, 2008 6:57 pm
Location: White Waltham, Maidenhead, Berks

Antifreeze

Post by thdxb08 » Wed Feb 24, 2010 1:34 pm

Can any one advise me what type of Antifreeze I should be using in my tiger that is fitted with a aluminium radiator. Should I be using red or green/blue?

odl21
Posts: 105
Joined: Tue Jan 29, 2008 5:25 pm
Location: ticino, swizterland

Post by odl21 » Wed Feb 24, 2010 5:20 pm

it doesn't really matter. i use the modern red organic acid technology (OAT) stuff because its not such a nasty chemical as ethylene glycol or propylene glycol .

its more expensive and they say not to mix it with the glycol (yellow/green) stuff so you'd need to do a full flush of the block with water if you switched.

i actually end up changing it at least once a year for one reason or another, but if you don't, the green/yellow stuff should be changed every 2 years.

gtsmrt
Posts: 723
Joined: Mon Nov 05, 2007 10:00 am
Location: Melbourne, Australia
Contact:

Post by gtsmrt » Thu Feb 25, 2010 7:30 am

Hi,

I would agree with the previous post. It doesn't matter what brand as long as it is suitable for iron and aluminium. I am using a green type in mine.

Regards, Robin.
Robin O'Dell
Tiger MK 1a
ENJOYING THE EXPERIENCE AS DAD WOULD HAVE

V Mad
Posts: 141
Joined: Fri Oct 14, 2005 6:21 pm
Location: Surrey
Contact:

Post by V Mad » Thu Feb 25, 2010 10:54 am

I would stick to Ethylene Glycol, not only to avoid risk of mixing problems (some can form a gel and block the rad) but because it is proven to work with the old seals, gaskets etc.; I have heard there can be problems with the new antifreeze compounds in old cars.
Chris :-)
1966 Mk1 260 Tiger
!972 Triumph Stag 3.0V8
www.stagweber.co.uk

thdxb08
Posts: 13
Joined: Thu Jul 10, 2008 6:57 pm
Location: White Waltham, Maidenhead, Berks

Post by thdxb08 » Thu Feb 25, 2010 12:23 pm

Thanks for the replies, I also read that you should use distilled water with water wetter, has any one any comments on this or is tap water OK to use.

H, Sunny 65
Posts: 110
Joined: Mon Mar 10, 2008 11:40 pm

Post by H, Sunny 65 » Thu Feb 25, 2010 1:15 pm

Hi,
Distilled water is better, less corosive. As for water wetter, I tried it and all I got was a header tank full of sludge, and had to flush the whole system. If you don't want your rad to block, it's best to flush out once a year any way. allso an engine runs cooler with no anti freeze, but not good for corosion.
Harry

odl21
Posts: 105
Joined: Tue Jan 29, 2008 5:25 pm
Location: ticino, swizterland

Post by odl21 » Thu Feb 25, 2010 3:27 pm

i use brita filtered water because i can never find distilled water. brita removes about 60-70% of the total dissolved solids. water is a better heat sink than antifreeze so i use about 30% antifreeze and the rest water. i also find gano filters particularly useful on old cars. i have one in my tiger (but there is never so much as a speck of debris in it!)

thdxb08
Posts: 13
Joined: Thu Jul 10, 2008 6:57 pm
Location: White Waltham, Maidenhead, Berks

Antifreeze Update

Post by thdxb08 » Tue Mar 02, 2010 9:46 am

Having researched the web I have found this link - http://cc.derekharris.com/Antifreeze%20 ... 9%20V8.pdf
It seems Fernox Alphi II that is used in central heating systems is recommended for classic cars. I have decided to try this with purified water.
Many thanks for all your posts.

Post Reply