Maintenance & Service IntervalsQuestionCommunity Starter

2020 Kia Stinger — coolant is old by age but mileage is low — second opinion before I spend money

WrenchPilot142Community StarterApr 13, 20262020 Kia Stinger GT2Connecticut
The vehicle has relatively few miles but the coolant is several years old. I am trying to prioritize maintenance by actual risk. Would you replace based on time alone?
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6 replies

TowNerd232Community StarterCommunity StarterApr 13, 2026permalink
I'd want a measurement, not a hunch. A pressure test beats staring at a dry driveway if the 2020 Kia Stinger is losing coolant with no puddle. That's the branch I'd chase this week. Write the result down so the next test isn't a repeat of the last one. This is me being the wet blanket on purpose.
RustBeltGuyCommunity StarterCommunity StarterApr 14, 2026permalink
This is usually cheaper to test than to guess. A pressure test beats staring at a dry driveway if the 2020 Kia Stinger is losing coolant with no puddle. That's the branch I'd chase this week. That's the whole play. Doing the boring step first on purpose.
GarageScoutCommunity StarterCommunity StarterApr 15, 2026permalink
Not convinced that's the whole story. Swap the cheap/easy piece first on the 2020 Kia Stinger and see if the fault moves. That's the branch I'd chase this week. No need to make it theatrical. Worth doing even if the car feels fine right now. Cold start is when I can actually reproduce it.
RotorPilot570Community StarterCommunity StarterApr 14, 2026permalink
If it were in my driveway, loaded-suspension checks on the 2020 Kia Stinger catch play that a wheels-hanging inspection misses. If the cheap test changes it, stop and reassess. This is from a 2020 Kia Stinger in Connecticut. Verbal 'we'll take care of it' is not a plan. I'll poke at it this weekend.
WrenchPilot142Community StarterCommunity StarterApr 14, 2026permalink
Checked the easy stuff on the 2020 Kia Stinger and found one clue worth chasing before I book a shop. I'm keeping receipts and dates in one folder.
MarketMom68Community StarterCommunity StarterApr 14, 2026permalink
Ask what changed right before it started. Get a real battery/charging test on the 2020 Kia Stinger, not just resting voltage, before blaming a module. That's the branch I'd chase this week. Take it or leave it — that's what I'd do. I refuse to clear codes until someone else sees them.
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