Automotive Fleet
MenuMENU
SearchSEARCH

Extended Oil Drain Intervals Mitigate Increased PM Expense

Improvements in engine design and on-board oil life monitoring, along with improved oil quality and the use of synthetic oils, have extended oil drain intervals and served to decrease PM service frequency.

Mike Antich
Mike AntichFormer Editor and Associate Publisher
Read Mike's Posts
November 5, 2015
Extended Oil Drain Intervals Mitigate Increased PM Expense

Photo via iStockPhoto.com.

5 min to read


Photo via iStockPhoto.com.

Fleet preventive maintenance (PM) expenses in calendar-year 2015 were flat compared to CY-2014, primarily due to extended oil drain intervals. Improvements in engine design and on-board vehicle technology, along with improved oil quality, are allowing fleets to extend oil drain intervals.

“The manufacturers continue to adopt more stringent oil requirements, increasing the cost of each maintenance service. But, the intervals between these services have continued to widen, in turn, mitigating some of the additional costs. Furthermore, customers continue to search for the lowest cost provider and EMKAY anticipates this trend to continue in both the short and long term,” said Dale Jewell, director, North American maintenance operations for EMKAY. 

Ad Loading...

At a Glance

  • Fleet preventive maintenance (PM) expenses in calendar-year 2015 were flat compared to CY-2014, primarily due to extended oil drain intervals.

  • Extended oil change intervals helped offset higher cost per incident as the miles between oil changes.

  • One factor keeping oil costs flat have been reductions in the cost of synthetic oil.

  • One trend putting both downward and upward pressure on oil drain expenses is OEMs offering free oil changes and tire rotations.

Another factor influencing 2015 maintenance expenses is OEM changes to scheduled maintenance programs, such as fluid changes, spark plugs, timing belts, and transmission services. This is expected to continue as OEMs develop onboard monitoring technologies and longer-life components.

However, some fleets are seeing this as an opportunity to even further extend oil drain intervals which increases the risk of operating outside of warranty parameters.

“Fleets continue to increase drain intervals as a method to reduce costs for preventive maintenance (PM) services. We have seen a decrease in frequency of PM services due to this factor. It is important, however, for fleet personnel to ensure that other vehicle components are maintained and inspected as appropriate, even as they increase intervals,” said Romy Bria, director, fleet management at ARI.

Extended oil change intervals have helped to offset higher cost per incident as the miles between oil changes have increased. The cost per oil change increased, on average, by 7 percent. Also, original equipment oil life monitoring systems are contributing to the extended oil change intervals.

“With regards to oil, while we’ve seen the per transaction cost rise, the interval between oil changes is longer due to the increased requirements from manufacturers to use synthetic oil. This trend kept the overall expense flat,” said Zingha Lucien, strategic consulting manager at Element Financial Corp.

Ad Loading...

Decrease in Synthetic Oil Prices

While oil drain intervals have increased, the proliferation of smaller displacement engines in fleet applications is putting pressure on fleet managers to use synthetic oil to maximize engine life.

“Fewer repair providers are stocking conventional oil. Many shops have moved to blends and/or synthetic oils only. Some fleets operating in ‘normal vehicle conditions’ have still not adopted the longer-life or the oil life monitoring system warnings due to a lack of confidence with OEM’s recommended longer life oil change intervals,” said Steve Jastrow, strategic consulting manager for Element Financial Corp.

One factor keeping oil costs flat has been reductions in the cost of synthetic oil.

“Overall, preventive maintenance costs remained relatively flat in the past year. This is mainly attributable to the stability in the cost of oil. An additional factor is the decreasing cost of synthetic oils and their increased usage in fleet applications,” said Bria of ARI.

Merchants Fleet Management, likewise, cited decreasing synthetic oil prices as a factor in helping to control PM costs.

Ad Loading...

“Lube, oil, and filter costs have remained relatively stable over 2015, with mild month-over-month increases in cost per service as OEMs continue to migrate toward synthetics.

OEM offerings of free preventive maintenance services or PM service invoice credits have been factors in lowering or offsetting oil change costs early in the lifecycle for some fleets,” said Brad Jacobs, director of strategic consulting for Merchants Fleet Management.

However, the situation with fleet PM in 2015 was comparable to what occurred in 2014.

“No significant changes have been observed from 2014 to 2015. Most manufacturers extended oil change intervals and switched to synthetic oils a few years ago. The cost of oil has been fairly stable and appears as though it will remain at similar pricing in the near future,” said Jeff Whiteside, senior director manufacturer relations and repair services for Wheels Inc. 

However, there are factors that are exerting upward cost pressures on fleet PM.

Ad Loading...

“The cost of crude and the introduction of new oil standards continue to drive costs up. Oil suppliers are currently exploring the use of natural gas and biological sources as lubricant bases, and the initial cost of those offerings is high. This is somewhat tempered by the extended oil change intervals and complimentary maintenance programs by some manufacturers. Also, the ongoing changes to manufacturer requirements on the usage of synthetic oils have become problematic to some,” said Jewell of EMKAY.

One trend putting both downward pressure on oil drain expenses is OEMs offering free oil changes and tire rotations.

Forecast of PM Costs in 2016

Most subject-matter experts anticipate that PM costs will remain flat in 2016.

“Lube, oil, and filter costs for 2016 should decrease either directly or indirectly if more manufacturers cover oil changes early in the lifecycle, and overall PM service costs should remain relatively stable as maintenance service intervals are extended in conjunction with continued OEM migration to synthetics,” said Jacobs of Merchants Fleet Management.

ARI also believes that PM costs will remain flat in 2016.

Ad Loading...

“We expect preventive maintenance (PM) pricing to either remain flat or decrease somewhat. Continued stability related to the cost of oil, along with increasing drain intervals and the continued acceptance of synthetics should have a favorable impact on PM costs. Additionally, more OEMs are offering free services, which will lower perceived costs in this area,” said Bria of ARI.

Another factor that indicates ongoing PM stability is the cost of oil itself.

“Due to a largely unchanged forecast on crude oil in 2016, oil change prices should remain stable in the coming year,” said Jastrow of Element Financial Corp.

However, one concern is the potential impact of higher labor rates and whether increased overhead costs will be passed on to fleet customers.

“As labor rates continue to rise, so will oil change costs. Fortunately, the increase in intervals between service remain higher than in past years and as new vehicle technological advancements continue with the utilization of synthetic blends, some of these costs may be offset over the lifecycle,” said Jewell of EMKAY.

Subscribe to Our Newsletter

More Fuel

Graphic showing U.S. gas prices April 2026 with line chart near $4.04 per gallon and regional bars: West Coast highest at $5.41, others around $3.68–$4.02, indicating rising fuel costs.
Fuelby Faith HowellApril 29, 2026

April Fuel Update: Prices Climb Above $4 as Spring Surge Accelerates

National average jumps to $4.04 per gallon, up sharply from last year, with West Coast prices topping $5 and further increases expected amid rising oil tensions.

Read More →
Graphic reading “Fuel-Saving Strategies” with fuel pump and droplet icons, representing fleet management tips on policy, in-network fueling, and maintenance to reduce fuel costs.
Fuelby Faith HowellApril 27, 2026

Tips from Fleet Managers on Saving Fuel Costs

Fleet leaders share practical strategies to reduce fuel spend through smarter policy, routing, and driver guidance.

Read More →
Graphic showing U.S. average gas prices for March 2026 with a line chart and regional breakdown, highlighting rising prices and highest costs on the West Coast above $5 per gallon.
Fuelby Faith HowellMarch 31, 2026

March Fuel Update: Prices Settle With a $4 Average

Fuel prices significantly slowed this week, but a $4 national average is still expected.

Read More →
Ad Loading...
Two men seated at a table during an interview about fleet fuel strategy, with on-screen text reading “AWP Safety Bob Adamski Senior Director of Fleet.”
Fuelby Chris BrownMarch 20, 2026

Bob Adamsky on Fuel Volatility: “Don’t Panic — Have a Plan”

With oil prices rising again, AWP Safety’s fleet manager shares how to respond to rising fuel costs and how the right strategy can turn fuel spikes into cost-saving opportunities.

Read More →
gas pump dispensing money on Middle East map
Fuelby Chris BrownMarch 13, 2026

Oil Market Turbulence Is Complicating Fleet Cost Planning

Rapid swings in crude oil prices driven by the conflict in the Middle East could create longer-term cost pressures for fleets, affecting fuel prices, supply chains, and vehicle strategy, says NTEA’s Andrew Wrobel.

Read More →
SponsoredMarch 1, 2026

Artificial Intelligence in Field Service: North America

48% of field service leaders are investing in AI to manage customer communication and self-service. Get the latest on how fleets are using AI and thinking about the future.

Read More →
Ad Loading...
A chart with EIA data shows an increase in U.S gas prices. Next to it, a chart breaks down the prices by region.
Fuelby Faith HowellFebruary 25, 2026

February Fuel Update: Prices Inch Higher for Third Week in a Row

The final February fuel update reveals prices continuing to inch higher for the third week in a row.

Read More →
A blue background has two fuel pumps overlaying it with text on the left side.
Fuelby Faith HowellFebruary 10, 2026

The 2026 Fuel Economy Guide: Updated Cost and Efficiency Benchmarks for Fleets

Fleet managers can use the DOE’s 2026 Fuel Economy Guide to benchmark MPG across powertrain types using side-by-side vehicle ratings and compare new model-year options.

Read More →
A chart with EIA data shows an increase in U.S gas prices. Next to it, a chart breaks down the prices by region.
Fuelby Faith HowellJanuary 28, 2026

January Fuel Update: Prices Hit Highest Level Since Summer

The national average for fuel prices has officially risen to its highest point since the summer.

Read More →
Ad Loading...
A chart with EIA data shows a decrease in U.S gas prices. Next to it, a chart breaks down the prices by region.
Fuelby Faith HowellDecember 23, 2025

Christmas Comes Early at the Pump: Gas Averages $2.79 Nationwide

The nation's fuel price average continues to decline, with current Christmas numbers the lowest since 2020.

Read More →