Coolant Specification Mix-Up on a Mixed Fleet
A municipal fleet buys coolant in bulk from your store. The fleet has three truck groups: 2010 diesels spec'd for a conventional green coolant, 2015 diesels requiring an extended-life organic acid technology (OAT) coolant, and two new 2022 units requiring a specific OEM-formulated coolant. The shop foreman orders 'six drums of the green stuff, same as always' but mentions the 2022 units are due for service next week. Your bulk tank currently holds only the conventional green product, and the OAT product is on a 3-day backorder. The OEM coolant for the 2022 units is in stock in 1-gallon bottles only.
1. How should the order be filled, and what risks does the foreman's request create?
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The request cannot be filled as stated without creating a specification mismatch. The conventional green coolant is appropriate only for the 2010 group. The 2015 group requires OAT, and the 2022 group requires the OEM-formulated coolant. Mixing coolant chemistries can cause additive dropout, gel formation, water pump seal damage, and loss of corrosion protection, and it can void the OEM warranty on the 2022 units.
Fill the order in three lines: green coolant for the 2010 group, OAT for the 2015 group (advise the 3-day backorder and offer to hold the order or split shipment), and the OEM bottled coolant for the 2022 units. Do not substitute the green product into the OAT or OEM applications just to complete the order. Confirm quantities per group with the foreman before releasing anything, since 'six drums' may not match the actual per-group needs.
2. The foreman says the backorder will stall service. What options can the parts department offer, and what must be documented?
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Options: (1) Split the shipment - release the green coolant now and ship the OAT when it arrives in 3 days. (2) Check whether another store or a nearby dealer has the OAT product and arrange a transfer. (3) For the 2022 units, supply the in-stock OEM bottled coolant now so those services are not delayed. (4) Offer a partial fill of the 2015 group with the correct OAT product if any is on hand, and schedule the balance.
Do not offer the green coolant as a stopgap for the OAT or OEM applications. Document the backorder date, the promised ship date, the transfer request if used, and the customer's acceptance of the split shipment. Note on the invoice which product goes to which truck group so the shop does not accidentally top off an OAT system with green coolant from a drum left on the floor.