Originally Posted by Azrael
Originally Posted by Snowy_Astra
This is just personal experiance on my part, fully synthetic is that bad in my engine that after a hot fast run i pull the dupstick out and the oil doesn't even stick to it, its just bare and unlubricated.
Is it only your impression form looking at oil or was there some real engine damage?
I am strongly convinced that you are simply werong. Synthetic based oil's are termically more stable and avalible in different visosities. Of course you can buy shit synth oil. But look at the Motul range which I know quite well. you've got here oil's from 0W20 for HIGH RPM!!!! to 20W60 for endurance racing. This are oils that can stand extreme temperatures over 130 degrees and loose much less of their qualities with time. For any mineral or hydrocraked oil (semi-synth) you can find synthetic oil taht can substitiute it with better qualities. Nowdays there are even synthetic oils for historic cars.
Well obviously i have no real proof of my experiances, i just know what i see and feel. Hot fully synthetic goes extremely runny, and has a sticky/watery feel to it between my fingers whereas semi stays slippery.
In my eyes, my common sence tells me that sticky/runny aint no good (especially when the engine sounds like a bag of shit aswell) and medium viscosity which is slippery texture is good.
Perhaps i am wrong, but i still use semi, the engine is quieter, & it runs better