Where you normally park the car at night do you notice any fluid on the ground? You could have a PS hose leak or a seal leak on the rack and pinion steering assembly.
Very difficult to diagnose with...
Stunning results as usual and always enjoy your write ups.
Hopefully the owners of all the vehicles you detail will take the time for continued care after your work.
Killer results on an old german 'muscle' car!
Beautiful job on the paint and wheels.
The seat leather looked beat up, were you able to revive it?
That is a hot 911!
This has the list of their products and capabilities for finishing, pad color choice is also important. Hope it'll help.
Menzerna, Menzerna Polishing Compounds Products, Menzerna FMJ, menzerna...
let them soak in some BF or CG microfiber cleaner restorer then in the washer with no fabric softener, in the final rinse add a cup of vinegar. Air dry or no heat in the dryer, no fabric sheets in...