If you take your car to Parkside Skoda (Bolton) for servicing they apply copperslip prior to re-fitting the wheels.

I don't work for Parkside, or have any other relationship with them other than they service my car.

Dwain

ive found this with all my cars that were fitted with alloys, ive been using copper grease on my hubs for years. its the only thing that works. i remember a friend calling me asking for help with the same problem, i got there to see him using the normal silly little car jack to hold the car up, while he was under the car bashing seven shades out of the wheel!!

rest assured i educated him in the art of axel stands and trolley jacks

It's electrical differences causing corrosion.

Steel plus alloy touching causes an electrical potential which assists corrosion hence they will always stick solid regardless of what car if the two metals touch

If you are stuck in the middle of nowhere with a puncture, no hammer & the wheel wont come off put the nuts back on to about 2-3 mm from tight, let the jack down making sure the wheels on a surface where it cant slip & try to rock the car from side to side. Ive personaly never had to do this but I have heard it works in some cases.

Prevention is as others have said, copper slip behind the wheel & also on the threads

It's electrical differences causing corrosion.

Steel plus alloy touching causes an electrical potential which assists corrosion hence they will always stick solid regardless of what car if the two metals touch

It can happen just as much with a steel wheel on steel hub, if fit is tight. Then I expect it is mostly ordinary rust.

IMHO copper slip/copper eaze on the face of the hub, but clean dry bolts is the way to go.

However, a set of these;- Wheel mates | Wheel Accessories | Demon Tweeks Motorsport, Motorcycle, Modifying, Parts and Accessories

will provide a clean, no-mess and re-usable solution, even if they are little pricey. I might just get a set.

It can happen just as much with a steel wheel on steel hub, if fit is tight. Then I expect it is mostly ordinary rust.

It can happen with steel wheels, however the difference in the metals means there is a small difference in electical potential and so the corrosion is increased.

I can't say i ever had a problem getting a steel wheel off a car on the other hand I also can't say i have ever have an alloy wheel come off easily.

Either way, it's still a bugger and a bit of copper slip would solve it.

Plus for enthusiastic drivers, lubrication like this plus heat on the fronts in particular = tarry glue. So you could now have over-tightened wheels and wheel bolts, glued on.

Sorry, this remark was in reference to WD40 / 3-in1 oil / penetrating lubricants. I use copper slip.

would k-y jelly do?

would k-y jelly do?

Do what ??