hello,

As i have mentioned previously i have had a clicking problem, definitely happens just after a rev the car a bit and on hot afternoons, so i guess its probably the oil pump gasket or whatever that gasket was that caused the oil to foam. Question is would it be possible to reduce the foaming by switching to a synthetic, atm my car is running on a castrol multigrade (GTX 3 i think), would it be worth my while to try synthetic 15W-50 or similar grade (keep in mind its hot up here)?