Quote Originally Posted by Retz View Post
Among the API CH-4 rated diesel engine oils, how do you rank Delo Gold, Rimula R3 X and Castrol GTX? and speaking of Castrol, hindi ba talaga magandang brand ito may nababasa kasi akong comment na prone sa sludge formation ito.
I'd rank Shell R3X higher, then Delo Gold. Better Ash, Zinc, Pho and TBN kasi Shell R3X & mas mura ng Shell R3X actually eh vs Delo Gold kung sa gas station ka bibili. Castrol GTX last for me.