Clutch slip or DMF problem?

Not that I can see.

Plenty of torque versus serious aerodynamic drag.

No it's not. Clutch slip is most likely when the engine is developing maximum torque. Which it might well need at a high speed in something like a motor home. If you use a low enough gear on a hill and keep the engine speed away from max torque it may not slip then.

Of course wheel spin is impossible.

Ah yes. Obvious in hindsight.

Not quite. High sided vehicle and a strong crosswind could reduce traction enough.

Tim

Now that would need a seriously mad driver.

B'sides, I'd expect traction control if it's even vaguely recent.

Nonsense. Unless on ice. In which case travelling at 60 mph would be stupid.

Do you drive a motorhome?

Tim

I know enough about them to be certain they won't spin their wheels at 60 mph other than on ice.

Do you drive at all?

There is likely no production vehicle which can spin its wheels in top gear. It would be stupid if it could.

I'll take that as a "no" then.

I don't think wheelspin is at all likely BUT, it's not impossible. A FWD van with a full water tank behind the rear axle, a couple of bikes on the back, combined with a gusting crosswind *could* reduce front wheel traction momentarily.

Tim

I don't think losing all grip on the front wheels whilst going that fast in a crosswind would lead to reports of the engine racing though.

The water tanks aren't behind the rear axle. That would be silly.

I'm sure the Yanks managed to knock some out, back in the late '60s. And, yes, I'm sure they were stupid. In a very good way.

FFS if your going to pretend to know something please do try harder.

Both my motorhomes have had water tanks behind the rear axle. It may be silly, but that's where it is.

Tim

But not on all, probably the majority.

Who said all??

Tim

Well if you lost *all* grip, there's not a lot stopping the engine racing under load. That said, in the incident concerned, I'm sure it must have been clutch slip.

Tim

You do talk some bollocks.

If it could break traction in top gear on normal road conditions, not much point in having lower gears...

So lets get things straight. You regularly get wheelspin in top gear on your motorhome? Because of poor weight distribution? Please give the make so we know never to buy such a crappy design.