Using summer tyres all year round

Von Luck · 19 Dec 2021 at 12:17

pastymuncher said:
4x4 drivers who think they are indestructible and end up in a ditch because they drive too fast for the conditions thinking that because they have a 4x4 they can't get stuck.

It's amazing the number of 4x4 drivers who don't realise that 4wd only helps you go faster, it doesn't help you stop quicker!

jpaul · 19 Dec 2021 at 12:51

x years w/o them
unless youv'e tried them how do you know they wouldn't add to road security on cold/wet days , any use of traction control in those conditions are potential opportunities -
pity you can't rent a set for a trial, or spec some on a rental car in the uk.

Rroff · 19 Dec 2021 at 16:15

Von Luck said:
It's amazing the number of 4x4 drivers who don't realise that 4wd only helps you go faster, it doesn't help you stop quicker!

Depends a bit on scenario but my truck will slow faster and/or not pick up momentum as quickly in 4wd in some situations thanks to the way the system works with engine braking.

(Obviously doesn't make a difference if the deciding factor is dependant on the contact between the wheels and road).

theone8181 · 19 Dec 2021 at 20:05

Rroff said:
Depends a bit on scenario but my truck will slow faster and/or not pick up momentum as quickly in 4wd in some situations thanks to the way the system works with engine braking.

(Obviously doesn't make a difference if the deciding factor is dependant on the contact between the wheels and road).

I suspect it was aimed at the typical suv, which I'm assuming has permenant 4wd.

Rroff · 19 Dec 2021 at 20:17

theone8181 said:
I suspect it was aimed at the typical suv, which I'm assuming has permenant 4wd.

I got the point - any time there is even a bit of snow, if the road hasn't been treated, around here the main roads are lined with 4x4s where the driver has abandoned it after the first swerve off the side of the road due to driving like a clown.

Bigger SUVs generally have some kind of all wheel drive system where a certain percentage of power can be directed to the rear wheels.

jpaul · 19 Dec 2021 at 20:18

from the perspective of greater mechanical loss in a 4wd system, that should payback in engine braking ?
perhaps surprising that in a 2wd car engine braking doesn't obviously cause lost adhesion on the drive wheels -
they got rid of the highest (regen) level on tesla model 3 because that could cause lost adhesion on slippery surafces,
I haven't followed an ev to know if brake lights come on if regen is high, and deceleration greater than some threshold

theone8181 · 19 Dec 2021 at 20:22

jpaul said:
from the perspective of greater mechanical loss in a 4wd system, that should payback in engine braking ?
perhaps surprising that in a 2wd car engine braking doesn't obviously cause lost adhesion on the drive wheels -
they got rid of the highest (regen) level on tesla model 3 because that could cause lost adhesion on slippery surafces,
I haven't followed an ev to know if brake lights come on if regen is high, and deceleration greater than some threshold

Not sure then did, think all new ones default to the normal of the old ones.

^I've never been in an suv so was just guessing.

adam cool dude · 19 Dec 2021 at 21:35

When my father was working in Berlin and Poland during the 80's he always swore by his polo breadvan in the harsh winters.

When you are on skinny tyres and less than 800KG kerb weight you can go almost anywhere.

Most of today's SUV's are too heavy and have far too wide tyres to be any good in the snow. A little Jimny or Panda 4x4 will more than likely run rings round them.

I took my Celica GT-Four out when we had the beast from the east and that was with AD08R's on so you couldn't get any more summer. Didn't get stuck as the 4WD and rear locking diff got me out of trouble. Then again Lincolnshire is flat as a pancake for the most part but if I did live in a hilly area I would more than likely have a set of winters kicking around in the garage.

Firestar_3x · 19 Dec 2021 at 21:40

A 4x4 on summer tyres isn't going anyplace irrespective of how good the 4wd system is.

CaptainRAVE · 19 Dec 2021 at 22:03

pastymuncher said:
Most of the people I have seen around here getting into problems are either revving the hell out of the engine which only succeeds in spinning the wheels or 4x4 drivers who think they are indestructible and end up in a ditch because they drive too fast for the conditions thinking that because they have a 4x4 they can't get stuck. It's no wonder this country comes to a halt with a small amount of snow.

When living in Michigan in winter every few hundred metres there would be a ditched 4x4 in a ditch next to the interstate for exactly this reason.