No, been introduced to something better
I'm now using A8 tfr - it's a non caustic cleaner with wax.
Brill with a snow foam or applied via a pump sprayer or backpack, it's really getting into the grime and on the vans is removing those stubborn black streaks, with a quick rinse to finish for a nice shine
G101 tends to leave a dull finish, hence the changeover
Darran