Very well, we shall investigate the phenomenon of LSPI, which is, in truth, a development of not merely the engines but the additives as well. The calcium detergents, I must declare, have been aggravating all manner of ignition disturbances since the nineteen-fifties. Yet, it was not until after two thousand and ten that this matter became wholly evident, and addressing it, I assure you, is no simple task indeed.
#lspi #ilsac #calcium
https://oil-glup.ru/threads/lspi-low-speed-pre-ignition.190/