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[QUOTE="kcpanages, post: 1477649, member: 26027"] And most of your 1000+ hp marine diesels and reduction gears...... use either Rotella or Delvac....... most oil changes are done every 500 to 750 hrs on engines....... reduction gears are every 5000 hrs or 12 months...... and that's with most engines turning 1800-2200 non-stop..... avg temp is 190-210 coolant...... engine room temp is 250/300 degrees during mid day....... day what you want about Rotella, but I've seen it in action for 17 hrs on river boats Sent from my iPhone using Tapatalk [/QUOTE]
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