jasonstang
Well-Known Member
I wonder what's exactly causing the tick.The BBQ Tick is not from a lack of oil flow & pressure for 1~2 seconds after an oil change. Guys who have the BBQ Tick hear it months after an oil change.
And oil typically gets thinner with use due to shearing and from fuel dilution. The only time oil gets thicker with use is if the volatility is high (Noack value is high) and it out runs the shearing and fuel dilution through "evaporation". Almost ever UOA I've ever seen shows the oil has thinned down with use - ie, the KV100 viscosity is less than the new oil value.
Go download the Australian owner's manual off of Ford's website. The Australian 2018 Mustangs call for 5W30 all the time. Lots of guys run 5W30 in the USA, and some guys still hear the BBQ Tick with the thicker oil.
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