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The Detroit Diesel sprays engine oil under pressure to the underside of the piston to help cool this engine. If your engine oil pressure is below specs, The cooling will not take place.
I suspect your radiator/fan combination is at fault though because oil pressure should increase up to 45-50 lbs at higher speeds. If you attempt to use an air dam, you will definately create more problems than you solve because the corner of the coach in the airstream produces a significant air flow through the radiator (from the inside outward!) |
RV and bus conversion info since 1996.
email Erv Kallstrom
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