Opinions or ? - Do I have to use a HOAT coolant?

[swede 2]

me personally I would would stick with with the hoat coolant

[earthman]

Walking around my local Wilko store today, I spotted this on their shelf,....no idea if it's actually suitable to use in the Trophy though.

[Wilko]

Earthman,
I saw this in my local Wilko today and thought the same, I was hoping the had copperslip grease, ended up going to a little car part shop, looked like something from "Open all Hours" a tube of the stuff about the size of a toothpaste tube, £2.54..happy days.

[earthman]

Originally Posted by Wilko

Earthman,
I saw this in my local Wilko today and thought the same, I was hoping the had copperslip grease, ended up going to a little car part shop, looked like something from "Open all Hours" a tube of the stuff about the size of a toothpaste tube, £2.54..happy days.

You using that copperslip on your brake pad pins then?

[rpeters549]

I ended up buying a gallon of Zerex Z-05.  It is a HOAT coolant and available locally.
Actually going to change it every 20k service because 10k seems way too much, especially when compared to the owners manual recommendations.  Since I average 8-10k a year, at the most it will be around 2 or 2 1/2 year intervals.

[Coconut]

The Owners Handbook ( Page 117 ) says :

Coolant - Renew - Every 3 years - regardless of mileage.

[rpeters549]

Yup. I just like to do things a little before the factory says I need to. I saw too many GM vehicles with 5 year/150k coolant replacement cycles all goo'ed up. With the cost of replacement parts so high, I consider the factory recommendation a maximum.

[earthman]

I'd like to know how they come up with these time frames in the first place and how come they can be so different from vehicle to vehicle.

I don't trust them fully, they have designed vehicles to have such a short life span nowadays, all this 'sealed for life' gearbox oil for example is a right con if you ask me.