Yes it is. ZIC Hiflo SM Grade 20w-50.
But Cherade has old engine which need old grade oil.
you may try Kixx's 20w-50 of sj grade.
Havoline 20w-50 is SG Grade. this oil will be suitable too.
Though its petrol engine, give a try to Delo Gold 15w-40. it will keep the engine clean too with good pickup.