Cars are made of mainly 3 types of material mainly steel, rubber and plastics. the rubber parts will fail first
The rubber components are put there to seal oil which keeps moving parts lubricated and to dampen vibrations and to hold moving joints.
From steering rack, arm joints, engine mounting, crossmember frame bush, suspension struts, belts are all made of rubber.

Rubber will lose its elasticity, dries, harden and crack after a couple of years.

all cars after 6years behave like crap because all the rubber is failing. once it starts to dry and crack, your car suspension and handling will not feel like it's new, it'll feel like a boat cuz the bush might shrunk and definitely your repair bill will pile up significantly.
Whatever funny squeaking sound also come out, because of the rubber shrinks already.

so this product will absorb into hardened rubber and make it elastic again.
just FYI, this product can also be poured into engine, gearbox, steering to rejuvenate gaskets and rubber seals to prevent leaking oil.
again where there is oil, rubber is used to seal it. and rubber will definitely fail after a couple of years.

list of all rubber parts



Conclusion is you take of the rubber, your repair/maintenance bill will be so much lesser



rubber bushings replaced with polyurethane bushings, just to show you where the rubber is

buy a bottle from shoppee, then pour it into a spray bottle.
during service, ask your mechanic to spray on whatever rubber bush, give them some upah for it they happy you also happy

you need your car jacked up to spray all rubber parts because some of them are in the deep in the middle.