Why coolant is the perfect seasonal-gap campaign

Coolant is the only fluid in the vehicle that has to do two opposite jobs over the course of the year. In July, it has to keep the engine from overheating in 35-degree traffic. In January, it has to keep the cooling system from freezing solid in a parking lot. Most fluids have one job. Coolant has two.

That dual purpose is what makes coolant unique with its flexibility in the manufacturer recommended service calendar. It is the rare campaign that can be timed to whichever of your slow months needs filling, framed against either season, without feeling forced.

The spring framing is heat: get ahead of summer overheating, make sure your cooling system is ready before the first heatwave. The fall framing is cold: get ready for winter, make sure your antifreeze is fresh before the first hard frost. Either one fits whichever month you need to fill.

Most manufacturers recommend coolant replacement every 7 years or 160,000 kilometres, whichever comes first. The chemistry is straightforward: coolant degrades over time, losing its protective and anti-corrosive properties. As it breaks down, rust and scale build up in the cooling system, restricting flow and accelerating component wear. The fluid that protected the engine for the first seven years quietly stops doing its job as well.

What a coolant service actually generates

Let's run the numbers. A coolant flush at a Canadian dealer typically retails $150 to $250. The work is straightforward: drain the old fluid, flush the system, refill with manufacturer-approved coolant, bleed air from the system, pressure test for leaks. About an hour on the lift.

Once the vehicle is up, the cooling system inspection naturally surfaces a few related items. Hose condition gets noted. Radiator condition. Thermostat operation. Water pump weep. Combined with a complete multi-point inspection, finding additional work on a vehicle at this age and mileage is inevitable.

Average coolant replacement RO including the inspection findings and right-sells: $500 to $750.

Why coolant is the campaign for slow months

Most service campaigns are timed to hit when customers are already thinking about service. That works for some campaigns. It is not how to use coolant.

The strategic value of coolant is that it can be timed to drum up traffic when nothing else is. February. March. August. September. The months when service drives slow down because the spring rush has not started or the summer rush is winding down. A coolant campaign in those months gives the service team something to work on, gives the BDC a reason to call non-responders, and keeps the bays from going quiet.

Pick whichever of your slow months has the longest stretch of quiet bays, and run a coolant campaign framed for the season ahead. The dual nature of the fluid means you have flexibility that most other campaigns simply do not offer.

For most stores, the eligibility list is meaningful: vehicles 7 years or older with no coolant service in the op-code history within the manufacturer's recommended interval. That is typically 20 to 30 percent of the total customer database. For a 5,000-customer store, around 1,500 names per campaign.

What makes it the perfect gap campaign

Three things.

The list is large enough to matter, small enough not to dominate. 20 to 30 percent of your total database, sized to drive meaningful traffic without overshadowing the rest of your annual marketing calendar.

The seasonal framing is genuine, not invented. The customer doesn't see through the angle because the chemistry actually does change with the temperature. Cold weather is hard on coolant. So is heat. The message is true either way.

There is plenty of additional work to be found. A coolant visit on a 7-plus year vehicle almost always surfaces other items: hoses, brake pads, alignment wear, fluids that have aged out. Because the campaign runs in a slower month, your technicians have the time to do a thorough multi-point inspection instead of a rushed one. Pair the campaign with a 10% off additional parts and labour offer during the visit and the right-sell math gets meaningful.

Run it as your slow-month default, the campaign you reach for whenever the calendar opens up, and it earns its place in the annual rotation more reliably than any other manufacturer recommended service available to you.

Why most coolant campaigns fail

If the math is so clean, why does this not happen at every store?

The campaign is run at the wrong time. A "get ready for winter" coolant pitch landing in someone's mailbox in late February reads as out of touch. A "stay cool this summer" pitch in October feels equally off. The seasonal framing has to match what is on the customer's mind in that month, or the message gets ignored.

The two seasonal angles get treated as the same campaign. A spring coolant message and a fall coolant message can use the same offer and the same eligibility list, but the headline, the lead paragraph, and the imagery have to be different. The customer who deletes a generic April reminder will still open a different October version of the same idea.

The customer's cost anxiety goes unaddressed. A 7-plus year vehicle owner already knows her car is approaching the years where maintenance starts costing more. She is not surprised by inspection findings, she is quietly bracing for them. A campaign that lands a coolant pitch with no acknowledgment of what comes next leaves her feeling set up for a big bill, and she defers. The campaigns that convert best on older vehicles offer something for the additional work that will inevitably come up: a 10% discount on parts and labour found during the visit, a payment plan option, or a reassurance that the team will walk her through findings before any work is approved. The cost of those add-ons is small. The conversion lift is not.

No follow-up on non-responders. Coolant has a slightly lower passive response rate than brake fluid, so the BDC outbound call is more important here, not less. Without the second touch, the campaign closes at half its potential.

What targeting that actually works looks like

A coolant campaign should land in the inbox or mailbox of a tightly defined group:

Lost customers belong on this list, the same as any manufacturer recommended service campaign. The phrase "manufacturer recommended" carries weight that a generic seasonal sale does not. A customer who has been getting her oil changed at Canadian Tire still hesitates when she sees a notice for cooling system service before the worst of the season hits. Aftermarket fluid in the cooling system on a vehicle that may still be inside its powertrain warranty window is a different conversation than aftermarket oil. That hesitation is the campaign's opening.

The message itself needs three things. A specific reason this customer is getting it ("Your vehicle is now due for its coolant replacement service"). A concrete offer with an expiry date. And ideally a 30-60 second video showing what coolant does and what happens when it degrades. Wellington dealers use the Service Video Library for this, but a phone-shot video showing fresh coolant next to old coolant works just as well.

There is one more thing the message has to do, and it's the one most dealers get wrong in either direction. The message needs to create urgency without creating fear. Spell out the real consequence: when coolant degrades, the engine loses its protection against overheating in summer and against freeze damage in winter. Fresh coolant runs around $200. An overheated engine or a cracked block runs in the thousands. But don't try to scare her into the appointment. The line is fine but real. Honest stakes are what convert. Manufactured panic is what trains customers to ignore you.

Where campaigns actually succeed (the team)

Once the list is out the door, the campaign becomes the team's job. This is where it earns or loses its return.

The Service Advisor. Brief them the morning the campaign drops. Walk through the talk track with the seasonal angle baked in: "Heading into summer we want to make sure your cooling system is ready for the heat" or "Heading into winter we want to make sure your antifreeze is fresh before the cold sets in." Because these vehicles are 7-plus years old, the inspection nearly always surfaces additional items the customer should consider. The advisor should walk through any findings the same way: photo first, manufacturer's recommendation second, customer's call third.

BDC inbound. Coolant brings in calls from customers who want to know whether the service is "really needed." They have heard varying advice from independents, neighbours, and the internet. Confirm the manufacturer's interval for her specific vehicle. Explain briefly that the chemistry degrades and the protection drops with it. Book the appointment.

BDC outbound. Seven to ten days after the mailer, work the non-responders by phone. Concern-based seasonal script: "I'm calling because our records show your vehicle is due for cooling system service, and with [summer/winter] coming I wanted to make sure you saw our reminder." That call recovers a meaningful share of the eventual response.

Incentives. Coolant is one of the campaigns where small bonuses pay back especially well, because the inspection findings on older vehicles tend to lift the average ticket significantly. A few dollars per appointment booked, or a small percentage of completed campaign revenue, both work. Wellington's Appointment Coordinator ROI Calculator sizes it.

What to do this week

Three things, all of them you can do without buying anything.

One. Pull your coolant eligibility list. Vehicles seven years old or more (or newer, depending on the manufacturer's interval), no coolant service in the op-code history within the manufacturer's recommended interval, any customer status (Active, At-Risk, or Lost) is eligible. Most stores will land somewhere around 20 to 30 percent of the total database.

Two. Run the math. A well-run coolant campaign closes 3 to 5 percent of the list. Conservative math: list size × 5% × $500 average ticket = the size of the opportunity.

Three. Slot it into your slowest month. Look at your service drive's quietest stretch on the calendar. If it is February-March, run the spring/heat framing. If it is August-September, run the fall/cold framing. The point is to fire the campaign when your bays need it most, not when the rest of your calendar happens to have an open week.

The bottom line

Coolant is the only service in your manufacturer-recommended catalog that does two opposite jobs over the course of the year. That makes it the only campaign with the flexibility to be timed against your slowest stretch instead of a fixed seasonal slot.

Most dealers run it the same week as everyone else, or not at all. The ones who use the flexibility, running it when their service drive needs the lift the most, are turning a routine fluid service into a strategic traffic campaign.

Every other campaign waits for a season. Coolant waits for you.

Byron Tyers Vice-President Wellington Consulting Inc.