FU: car oil change and car window tinting

[davester]

cbelt3 wrote:
Davester_ car has 400k miles. Ring wear, etc.. Higher vis. May be in order.

Unlikely. High viscosity is not going to help you if the rings are worn. It is true that some mechanics will spout old wives' tales like "increase the viscosity because the engine is old", but most advice like that is based on hearsay and unicorn farts.