Very worried as mixed G11 with G12 in my Golf!!!

Ok thanks. Humour me a bit, I've only ever changed the coolant by dropping it all out, and then filled and bled. How would you flush, and with what?

I've always flushed by dropping the coolant, refilling with water + BARS coolant/radiator flush (following the guidelines on the product itself), and then re-drain and finally re-fill as per normal.
 
Classic Rypt.

The output of the engine has sweet FA to do with chemical incompatabilty.

A Super output engine would be running pretty much water anyway ;)

Classic Jonnycoupe doing a Fox and missing the point.

A high output engine may be using some special alloy which may not react well to certain coolant mixtures, it may also perform better with different coolants that have different properties.

A bog standard engine is designed to be run with most types of coolant, such as the cheap Tesco jobbies. And a Golf falls in this category.
 
A bog standard engine is designed to be run with most types of coolant, such as the cheap Tesco jobbies. And a Golf falls in this category.


^^ LOLZ, what engine has he got in his Golf then?

Given that you don't know i'm going to assume you class the 1.8T engine as a bog standard engine, which as already stated has issues with mixing coolant types.
 
Classic Jonnycoupe doing a Fox and missing the point.

A high output engine may be using some special alloy which may not react well to certain coolant mixtures, it may also perform better with different coolants that have different properties.

Atleast I had a point to help the guy.

Water is the best coolant, anything else compromises its specific heat capacity, but of course a road car has HIGHER demands due to the life and corrosion inhibiter/anti freeze. Just something is high performance does not mean everything in the system see more demand than a 'road car'

If you mixed the coolant in anything you could have issues, why you are suggesting the material of the block would effect stuff is beyond me.

Yes Classic me, keep check on non factual conjecture that classically comes from rypt. Its like tales of the cRYPT, nothing but make beleive stories :D
 
^^ LOLZ, what engine has he got in his Golf then?

Given that you don't know i'm going to assume you class the 1.8T engine as a bog standard engine, which as already stated has issues with mixing coolant types.

He never said what engine his Golf has, so I just assumed it was some sort of 1.6 16valve I4 cheap jobbie


If you mixed the coolant in anything you could have issues
Except for generally if you mix coolants that are similar to each other nothing happens, and I would think a G11 would be pretty close to a G12 (else it would have a different naming)
 
Assumption is the mother of all **** ups.

Get a clue before you give advice please :)

Right, so should we now not mix BP Ultimate with Shell Premium (or w/e the naming is) fuel? After all, we all assume that since they are similar they will work fine.


Things that are nothing alike should NOT be named similar.

It should be G11 and A12 or smth
 
I guess G12+ would really confuse him.

Right, so should we now not mix BP Ultimate with Shell Premium (or w/e the naming is) fuel? After all, we all assume that since they are similar they will work fine.


Things that are nothing alike should NOT be named similar.

It should be G11 and A12 or smth


It's quite simple, don't give advice unless you are certain. Diesel and Petrol pump nozzles are similar, but you wouldn't put petrol in a diesel just because the nozzle fits and looks similar.
 
Right, so should we now not mix BP Ultimate with Shell Premium (or w/e the naming is) fuel? After all, we all assume that since they are similar they will work fine.


Things that are nothing alike should NOT be named similar.

It should be G11 and A12 or smth

Are you for real?

I guess you never use V-power? Just in case you put either petrol or diesel in.

How about DOT 4 and DOT 5 brake fluid?

Go down the clue shop and take your chequebook.
 
How about DOT 4 and DOT 5 brake fluid?

Go down the clue shop and take your chequebook.

Perhaps you need a clue book, since you can mix DOT brake fluids generally (so running a 3+4 mix in a car that usually uses 4 would work fine)
 
Perhaps you need a clue book, since you can mix DOT brake fluids generally (so running a 3+4 mix in a car that usually uses 4 would work fine)

No, you need the chequebook and clue purchase, DOT4 and DOT5 are completely different.

One being Glycol and one Silicone.

You can mix DOT4 and DOT5.1 but yet its got a similar name to DOT5, shock horror as similar naming means **** all.
 
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I did say DOT 4 and DOT 3 in my post ... which CAN be mixed

But the question was "How about DOT4 and DOT5 brake fluid"?

Naming conventions mean literally bugger all, and second-guessing isn't ever a substitute for having a clue.
 
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