But all soviet tanks of that era suffered from the same problems- cramped fighting compartment that hindered crew efficiency and caused excessive fatigue. Poor transmissions that ate themselves up, and high alloy engines that catch fire when hit. They also had a fatal design flaw mating the turret to the hull and had to store main gun ammo around the turret ring due to lack of room inside the tank hull.
That didn't stop the gap guys from screaming the T62 was a diesel driven wraith...
You are thinking of the '67 war when it comes to M48's not upgraded. By 1973 the M48's were brought up to M60 standards but the Israeli armor forces included large numbers of Centurions. Rather than claim superior training it was more like poor high command leadership... on the battle field the Israelis were fighting to the death and taking massive losses. Not until the Egyptian high command decided to leave the protective curtain of the SAM 6 umbrella did the Israelis have success in the Sinai. Without air support the Israelis were being torn apart, and unable to rescue the reservists manning the Bar-Lev line, and unable to push the Egyptians back all the while taking huge losses. Syria's big problem was a poor battle plan that drained their air defense system to the point the Israeli air force could operate over the Golan. In the beginning the Israeli armor was being wiped out, they fought bravely but were wiped out.
I'm not knocking the Israelis but it was more a case of disastrous command decisions on both sides that shaped that battle. You might enjoy a good book on the subject- "The Eve of Destruction" by Howard Blum.