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Castrol 20w-50 motor oil -Is this “Too Thick”?


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Hello fellow Yota, I want to change my 88’s Dolphin motor oil with this Castrol 20w-50 motor oil. I am trying to stay away from synthetic motor oil. They are not good for these old RV. The Castrol Classic 20w-50 have a lot of zinc. Is this oil a little thick(20w-50) ?Thank for letting me join this group. ✌️

6D0E8186-51CC-4184-A157-882AD0EC7ADA.jpeg

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1 hour ago, Coy said:

Hello fellow Yota, I want to change my 88’s Dolphin motor oil with this Castrol 20w-50 motor oil. I am trying to stay away from synthetic motor oil. They are not good for these old RV. The Castrol Classic 20w-50 have a lot of zinc. Is this oil a little thick(20w-50) ?Thank for letting me join this group. ✌️

6D0E8186-51CC-4184-A157-882AD0EC7ADA.jpeg

I run Mobil 1 20/50 weight in my 1979 20R. Have used it for the past 11 years and love it. I usually do an 1800 mile trip each year. 900 miles each way stopping only for fuel and power naps. Engine doesn’t miss a beat or overheat. 
 

I have nothing against Dino oil but found my rig runs much better with synthetic oil. I also run Mobil 1 in my transmission and rear axle. FWIW Fred.

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