Oil Archives

On-And-Off Engine Patterns Can Be Hard on Oil

Fleets that do city deliveries are increasingly turning vehicles off during deliveries rather than letting them idle. While this saves fuel and cuts emissions, and in many cases conforms with local regulations, Chevron warns that it could be affecting your engine oil. Chevron representatives say they have been seeing an increase in severe-duty operations due… Continue reading On-And-Off Engine Patterns Can Be Hard on Oil

How Oil Filters Can Help Fleets Extend Drain Intervals

High diesel and crude oil prices may make headlines, but the cost of engine oil has risen, as well, making an extended-oil-drain strategy more appealing. Many newer engines already have longer oil drain intervals than in the past, with some up to 40,000- to 50,000-mile drains for on-highway applications. There are a lot of fleets… Continue reading How Oil Filters Can Help Fleets Extend Drain Intervals

Cummins ISB Diesel Engine Oil Cooler

The coolant leak on the oil cooler was noticed during a service with the bus on the hoist. That’s what it’s all about when it comes to preventive maintenance. Finding problems before they get worse is our daily goal in the shop. Every 5,000 kilometres our buses go up on the hoist and gets a… Continue reading Cummins ISB Diesel Engine Oil Cooler

Mercedes MBE 900 Electrostatic Oil Separator

Replacing the Electrostatic Oil Separator When you get an EOS (electrostatic oil separator) code on an MBE 900 Mercedes diesel engine the only remedy is to replace it. Since it is integral with the engine valve cover the complete valve cover assembly is replaced. This is costly but this is only the second one we’ve… Continue reading Mercedes MBE 900 Electrostatic Oil Separator

Is Synthetic Transmission Oil Worth The Cost?

Fleet Preventive Maintenance Notes Synthetic Transmission Oil It was several years ago when a salesman from the Detroit Diesel dealership came in and was promoting the benefits of synthetic transmission oil. Their parts department was selling it of course and the price was astronomical in my mind. We were paying around two bucks a… Continue reading Is Synthetic Transmission Oil Worth The Cost?

School Bus Transmission Oil In Coolant Repair

Cooling System Disassembly Remove Radiator To improve access to the radiator we removed the hood, charge air cooler and radiator assy. Before installing a new radiator the cooling system needs to be flushed out properly. The local rad repair shop recommended a low suds dishwasher detergent. Calgonite for instance would work in this case.… Continue reading School Bus Transmission Oil In Coolant Repair