|
My two cents on this....
The piston tester is ok for "general" assumptions. What it proves is that you haven't lossed a seal or one isnt stuck.
50psi is low, even for a cold engine so vex's suggestion of letting it pump up to the overall psi is a better assumption. for the s4 NA 100psi would be better, but 95 isn't the end of the world (but I would start saving for that rebuild).
I would not do the ATF/MMO/Water trick. In certain cases, this is acceptable such as a motor that has been sitting in storage or got completely locked. Its a last ditch effort for freeing an engine, but not something you should do on a running one primarily because what it can "free up" can also cause MORE damage to the seals/springs in the engine than good.
Start running premix 100:1 at least on the ratio, do regular oil changes and start saving.
This is all speaking from experience on two separate NA engines - so I'm sure some people have had different experiences...
|