Zerex G05 for Range Rover?
- Thread starter mkiv808
- Start date
You should be able flush and then use Zerex G-05 in most vehicles.
G-05 offers the best of both worlds, fast acting IAT (silicates) for immediate protection, and long lasting OAT for long life protection, as a hybrid package. G-05 is also 2-EHA free to protect your plastics, and with low enough silicates to not cause any deposit issues.
G-05 offers the best of both worlds, fast acting IAT (silicates) for immediate protection, and long lasting OAT for long life protection, as a hybrid package. G-05 is also 2-EHA free to protect your plastics, and with low enough silicates to not cause any deposit issues.
There IS a reason that Honda and other Jap bikes use silicate free antifreeze in there aluminum blocks/water pumps.
You will have to completely flush out the Dexcool before installing the G05.
Gotcha. And vice versa?
I thought it was the Japanese bad habit of just topping up with concentrate and never doing a periodic drain and flush, leading to an over rich solution causing precipitation. More bad habits than bad chemistry.
I've used G05 in my Honda motorcycle, but I would do a full drain and rinse and replace with 50:50 every few years.
That makes sense. Do they work on a lot of older cars there?
The thing about G05 is that it's a very flexible coolant in application, it works well for both newer cars and older cars, for petrol engines and diesel engines. I could see an indie shop using it for almost everything and getting good results. They just need to flush out the old chemistry before swapping in the G05.
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Valvoline blurb below:
"Zerex G05 from Valvoline is the #1 selling OEM-approved coolant brand. Zerex G05 Antifreeze/Coolant is proven to maximize engine life in newer Ford, Chrysler and Mercedes-Benz cars, light trucks and heavy-duty vehicles. Suitable for both gasoline and diesel engines, its original long-life chemistry is specially formulated with the highest quality virgin ethylene glycol and Hybrid Organic Acid Technology (HOAT). Zerex is made for your car and protects better than industry standards against corrosion, leaking, deposits as well as freezing and boiling – the four main causes of cooling system failure, which is the leading cause of engine breakdown. Our low-silicate, reduced pH, phosphate-free formula with Hybrid Organic Acid Technology (HOAT) protects all cooling system metals (including aluminum) from corrosion. It contains nitrites that protects diesel-engine cylinder liners from cavitation, while deposit control additives guard against hardwater deposits and scale. So radiators, water pumps and other metal cooling system parts stay clean and your antifreeze flows and functions properly. Whether you’re topping off your radiator or doing a complete system flush, trust Zerex G05 Antifreeze/Coolant. Made for your car. Made by Valvoline.
SPECS
- UNSURPASSED FREEZE PROTECTION AND ANTI-BOIL PERFORMANCE outperforms industry standards
- HYBRID ORGANIC ACID TECHNOLOGY FIGHTS RUST, SCALE & CORROSION while protecting all cooling system metals (including aluminum)
- HIGH-QUALITY ADDITIVES PROTECT AGAINST LEAKS and won’t harm gaskets, hoses, plastics or original vehicle finish
- PRE-MIXED YELLOW FORMULA IS READY-TO-USE in a 50/50 ratio with deionized water to protect all modern engine components from winter freezing (-34F) and summer boiling (265F).
- YELLOW CONCENTRATE FORMULA should be mixed with clean tap water or demineralized water at 50/50 ratio for temperatures -34 to 265F; 60/40 for -62 to 270F; and 70/30 for -84 to 267F
- 5 YEAR/150,000 MILE GUARANTEE protects against engine failure caused by freeze-ups or boil-overs
- BATCH-TESTED IN THE LAB, FLEET-TESTED IN THE REAL WORLD to help car and truck owners achieve optimal performance and maximize engine life."
https://www.valvolineglobal.com/en/g-05-antifreeze-coolant/
DexCool should not be mixed with anything but dex. There is a complex web of what techs are compatible, the consequences of getting wrong range from simple "reduced coolant life" to it turns into gel plugs the system and catastrophically overheats. Don't mix.
Dexcool will turn to a gel when mixed with other coolants.
Yes and no, mix it with an old school IAT coolant and there is a chance it will.
But i've topped off Dexcool with VW G12 aand Ford Orange with G12 too, no issues, the are basically the same stuff.
I’ve made it 16 years and over 260,000 miles using Dexcool in my Chevy 6.0 LS engine changed every 5 years. Still have the original radiator, water pump and heater core.
Yes, completely flush out all the Dexcool with clean water before refilling with G05.
If going back do the same, completely flush out all the G05 with fresh water, before refilling with Dexcool.
I just let the old stuff drain, flush out with a hose, drain the regular water, then fill with coolant. Some people are very pedantic and use demineralised water as a flush. I just use the garden hose and I've never had a problem, you let it drain out anyway. It's what most garages do.
However if it gets low I always top up with 50:50 premix, or if I run out of that, then I only use demineralised water as a top up.
They are both OAT coolants , free of any IAT inhibitors, I believe G30 does not contain 2-Eha, Dexcool sure does.
In the EU 2-Eha has been banned and is being phased out.
You could use G30, or G40, the only difference is G40 contains Silicates unlike G30, either would work fine.
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