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[Friend in PA]

Hmm.. First I guess I should ask if they sell this stuff in the UK?

I am about to do a full system flush and plan to replace the old Dex Cool red stuff with Prestoine Platinum.

Anyone here use this in their Omegas?

[TheBoy]

Not sure I've seen that in the UK, only Prestone products I've seen here are budget end car shampoos.

As long as it meets the spec of what the glovebox user handbook says (and its important that it does), I put in whatever is cheapest/convenient.

[Andy B]

Costco sell Prestone anti-freeze 

https://www.costco.co.uk/Tyres-Automotive/Car-Maintenance/Oils-Fluids/Prestone-Summer-Coolant-Winter-Antifreeze-4-Litre/p/371307

[STEMO]

It's also available on Amazon.

[Nick W]

What are you expecting it to better than any other coolant that meets the engine desgner's specification?

[Migv6 le Frog Fan]

Pretty sure ECP also sell it. Not sure about the spec though.

[Friend in PA]

What are you expecting it to better than any other coolant that meets the engine desgner's specification?

According to the literature it is the best they make and will last 15 years or 350000 miles.

https://prestone.com/product/platinumafc/

MAXIMUM ENGINE PROTECTION† Guaranteed For All Vehicles
15+ Years**/350,000 Miles – Fluid Guaranteed for the Life of your Vehicle*
Extreme Freeze & Boil Over Protection -50 ̊F / +268 ̊F
Industry Leading Protection From Engine-Damaging Rust & Corrosion including our most advanced Prestone Cor-Guard® technology.
Universally works with all fluid colors; All OAT, POAT, HOAT & IAT; G05®, G11®, G12®, G12++®, G13®, G30®, G40®, & GG40®. For all engines & engine sizes, new and older engines.

[amba]

And they said the moon was flat and made out of cheese.

Best advice change coolant every few years

[Nick W]

An Omega won't retain coolant for 35,000 miles - which is almost the timing belt interval - let alone 350,000.


Which makes the manufacturer's marketing wank irrelevant even if you beleive it.

[Friend in PA]

Point being that for the same price as Dex Cool you get what is allegedly a better product. With my mileage being well under 5,000 per year it will last several years with no worries.

In any event, it's my choice for the upcoming flush and recharge in the next week or so before the season kicks in up here in the mountains.

Cheers

[johnnydog]

An Omega won't retain coolant for 35,000 miles - which is almost the timing belt interval - let alone 350,000.

Which makes the manufacturer's marketing wank irrelevant even if you beleive it.

Rubbish.....
I've had a couple of V6 Omegas with full Vauxhall service history, but with no mention of coolant flushes/ changes in over 8 years. Not ideal, and obviously something the previous owner didn't feel necessary or didn't want doing, but the cam belt change and coolant was one of the first jobs I attended to.
But to suggest that the Omega engine won't 'retain' coolant for 35,000 miles or more is claptrap.

But...another new OOFer treated with condescending and critical comments which I think is totally unreasonable. Surely having advice from experienced owners is what he wanted, but there's a way and a manner in which to give it.

[STEMO]

An Omega won't retain coolant for 35,000 miles - which is almost the timing belt interval - let alone 350,000.

Which makes the manufacturer's marketing wank irrelevant even if you beleive it.

Rubbish.....
I've had a couple of V6 Omegas with full Vauxhall service history, but with no mention of coolant flushes/ changes in over 8 years. Not ideal, and obviously something the previous owner didn't feel necessary or didn't want doing, but the cam belt change and coolant was one of the first jobs I attended to.
But to suggest that the Omega engine won't 'retain' coolant for 35,000 miles or more is claptrap.

But...another new OOFer treated with condescending and critical comments which I think is totally unreasonable. Surely having advice from experienced owners is what he wanted, but there's a way and a manner in which to give it.

Bad johnnydog! No belly rubs or walkies for you this afternoon 

[Doctor Gollum]

It should be noted that the weak spot in the Omega cooling system has nothing to do with the coolant.

The HBV should be treated as a service item. Even genuine ones have been known to fail in short order, ie within two years, and when* it fails, it will dump the coolant.

The problem is not knowing what combination of neglect has previously been used to top up the system following a slow leak (reseevoir/cap) or a catastrophic one (HBV).

The moment incorrect fluids such as tap or mineral water or incompatible coolant are used, the system degrades from the inside out.

It isn't possible for one coolant to meet every manufacturers specifications. And given that coolant changes are a service item, I would suggest sticking with Dexcool as described by GM.

*If isn't an appropriate word in this case as at some point the HBV WILL fail.

[Andy B]

....
The moment incorrect fluids such as tap or mineral water or incompatible coolant are used, the system degrades from the inside out. .....

My cars have only ever had good old corporation pop ..... but ours is pretty soft

[Doctor Gollum]

....
The moment incorrect fluids such as tap or mineral water or incompatible coolant are used, the system degrades from the inside out. .....

My cars have only ever had good old corporation pop ..... but ours is pretty soft

Ours is hard enough to scale fish.