Working through renewal quotes this week, and both our OEMs are tying extended drain approvals to their telematics/predictive maintenance bundles. We run 62 tractors on 25k-mile oil intervals; they’re pitching $18/unit/month with oil analysis to stretch to 35k and auto-schedule PMs — has anyone seen measurable downtime reduction or total cost savings that justify the spend?
Pilot 10 trucks for 90 days; track unscheduled downtime and PM variance. Did ‘35k’ hit without top-offs?
I’ve seen good results from predictive maintenance, but $18/unit/month feels steep. Have they shared any case studies that support these savings? 
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