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I’m getting ready to do my first oil change and I’m confused about the engine oil specs. The manual calls for ces20071 or ces20076 oil, or CG-4 or CH-4. Valvoline blue is very difficult to find around me, but Shell Rotella T is on sale for $60 for a 5 gal bucket. Shell Rotella T lists compatibility with CH-4 and CG-4 but CES20081, not -71. Searching around I couldn’t find anything cummins put out saying CES20081 is backward compatible with -71.
Is the plain vanilla 15w-40 shell Rotella T fine to use? Or do i need T4 or T6? Or just keep shopping around and try to find cummins/valvoline?
Also for 2 6CTA’s plus the genset, does three 5 gallon buckets sound about right to buy?
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