I had a tiny leak as you have and had a major journey to Portugal where I now live, I didn't fancy something letting go in a bigger way on the journey so bunged in some k seal, I kept an eye on all temps and there was no sign of anything getting hotter than usual, that was a year ago.
I have used the car in ambient temps up to 36 deg C. It hasn't missed a beat and has only required 300ml of coolant adding in 12 months and 15000km.
I'm a convert, it did the job for me.

INTERETSING.. Thanks

its certainly something to consider. Regards

Daz

-------------------------
2011 (61plate) 4.4 tdv8
sumatra black

previous cars

e46 m3
e53 x5

+1 for K Seal.

Dazza, I reckon you may have just had an air lock.
Keep an eye on the level as previously mentioned. Use the UV bottle & if all ok or minimal loss. Add K seal.

and the k seal will be all good for my car? I can just carry on as if it never happened lol?

Interesting to see people have such split views? Regards

Daz

-------------------------
2011 (61plate) 4.4 tdv8
sumatra black

previous cars

e46 m3
e53 x5

Yes

Split views but take note of the people that have used it without issue.
Plenty will say its snake oil but they're the same people who haven't used it.

I used it as described and have encountered no issues whatsoever.

Yes

Split views but take note of the people that have used it without issue.
Plenty will say its snake oil but they're the same people who haven't used it.

I used it as described and have encountered no issues whatsoever.

Yes

Split views but take note of the people that have used it without issue.
Plenty will say its snake oil but they're the same people who haven't used it.

I used it as described and have encountered no issues whatsoever.

Yes

Split views but take note of the people that have used it without issue.
Plenty will say its snake oil but they're the same people who haven't used it.

I used it as described and have encountered no issues whatsoever.

I used a similar product on my 4.6 P38. You have to follow the instructions to the letter. In my case I had to flush out all the coolant from the system before adding the product (can’t remember it’s exact name). I never had any issues with it, kept the car for another 8 years and it was close to 150,000 miles when I finally sold it. So a good 60,000 miles covered by me. However, before taking the plunge and buying the K Seal I would be inclined to follow the advice already given and use your RR and keep an eye on the coolant level at least that way you’ll know for sure if there is any coolant loss or whether it was an air lock that caused the original issue.

ive had several vehicles with crack blocks and two with cracked valve walls and one with a porus head , the cracked block cars smoked like mad , the crack valve wall cars pressurised the coolant system and coolant needed topping up but could take a few weeks , the porus head one refused to start when cold so I think if you had any of those there would be symptoms pal