Yukon 2022 6.2 engine died at 75,000 miles.

[Vladimir2306]

That is exactly what Vlad and his team are doing.

Ah, yes, we bring the engine into condition by having blue printing

 

[Matthew Jeschke]

Engine blueprinting... This can be taken to another level to reduce rotating resistance, make sure every bore is in line, reduce the tolerances and overall improve fitment for components in the engine. Further improving on manufacturer's spec.

I balanced my rotating assembly when I built my engine which is another thing. Engine runs INCREADIBLY smooth. Some people refer to this as having engine balanced and blueprinted.

I'd still not trust that zero weight oil. It's purpose is not to about reliability but rather to meet some arbitrary EPA regulation. The heavier weight oils will improve your engine's life. The light weight ones risk spinning and or grinding up engine bearings.

 

[Vladimir2306]

Engine blueprinting... This can be taken to another level to reduce rotating resistance, make sure every bore is in line, reduce the tolerances and overall improve fitment for components in the engine. Further improving on manufacturer's spec.

I balanced my rotating assembly when I built my engine which is another thing. Engine runs INCREADIBLY smooth. Some people refer to this as having engine balanced and blueprinted.

I'd still not trust that zero weight oil. It's purpose is not to about reliability but rather to meet some arbitrary EPA regulation. The heavier weight oils will improve your engine's life. The light weight ones risk spinning and or grinding up engine bearings.

No, there was no need to improve anything, there was just to do everything as laid down by the designers, er, and not as GM did. As for the bearings, there is a funny situation, on the L86 engine there are connecting rod liners that do not wipe the crankshaft, because they are covered with a smooth coating. And on the L87, the connecting rod bearings are gray, covered with some kind of matte material, which are supposed to hold the oil, but in fact they wear out themselves faster and wear out the crankshaft.
But, I am still sure that the culprit of the engine breakdown is neither oil, nor connecting rod liners, nor the crankshaft. Something is happening in the engine, something else, maybe at one moment some sensor gives an error, maybe something else.