Need advice: Coolant is old by time but low mileage
Car only has 32k miles but the coolant is several years old. Would you change it based on age alone? I'm trying to prioritize maintenance that matters rather t…
Maintenance & Service Intervals
Repairs & Ownership
2024 Chevrolet Corvette — brake fluid is old but still looks clean — Orange County owner
Fluid looks clear in the reservoir but has been in the car for several years. Would you change based on time/moisture rather than appearance?
RustBeltBuilder621Community StarterJan 30, 20262024 Chevrolet Corvette Stingray Z51Orange County0 replies0 helpful
2022 Tesla Model 3 Long Range — do shorter oil intervals actually make sense for my use?
2022 Tesla Model 3 Long Range, about 78,000 miles. Most of my driving is short trips with a lot of idling, but the factory interval is pretty long. I'd rather…
2021 Tesla Model S — brake fluid is old but still looks clean — trying to narrow this down
Fluid looks clear in the reservoir but has been in the car for several years. Would you change based on time/moisture rather than appearance?
2017 Porsche 911 Carrera S — question: Coolant is old by time but low mileage
2017 Porsche 911 Carrera S, about 48,000 miles. Car only has 32k miles but the coolant is several years old. Would you change it based on age alone? I'm trying…
2018 Toyota Camry — short-trip driving and oil-change intervals
The car gets lots of cold starts, idling and short trips with few long highway runs. The factory interval feels long for that use. How would you set an interva…
2024 BMW i4 — coolant is old by age but mileage is low
2024 BMW i4 eDrive40, about 13,500 miles. The vehicle has relatively few miles but the coolant is several years old. I am trying to prioritize maintenance by a…
2024 Ford Mustang GT — need advice: Do shorter oil intervals actually make sense for my use?
Most of my driving is short trips with a lot of idling, but the factory interval is pretty long. I'd rather not waste oil, but I also plan to keep the car past…
2018 Subaru Forester — brake fluid is old but still looks clean
2018 Subaru Forester 2.5i, about 62,000 miles. Fluid looks clear in the reservoir but has been in the car for several years. Would you change based on time/moi…
2024 BMW i4 — first used-oil analysis: what matters? — buyer question from Washington DC
2024 BMW i4 eDrive40, about 29,500 miles. I am thinking about sending an oil sample to establish a baseline. For a normal street engine, which trends are actua…
2013 Chevrolet Silverado 1500 — brake fluid is old but still looks clean
Fluid looks clear in the reservoir but has been in the car for several years. Would you change based on time/moisture rather than appearance? I am in Dallas. I…
2023 Lincoln Navigator Reserve — anyone else: Do shorter oil intervals actually make sense for my use?
2023 Lincoln Navigator Reserve, about 1,200 miles. Most of my driving is short trips with a lot of idling, but the factory interval is pretty long. I'd rather…
CruiseMom94Community StarterJun 25, 20262023 Lincoln Navigator ReservePhiladelphia6 replies0 helpful
2018 Cadillac CTS-V — short-trip driving and oil-change intervals
2018 Cadillac CTS-V, about 84,000 miles. The car gets lots of cold starts, idling and short trips with few long highway runs. The factory interval feels long f…
Need advice: Do shorter oil intervals actually make sense for my use?
2023 Mercedes-AMG C43 4MATIC, about 78,000 miles. Most of my driving is short trips with a lot of idling, but the factory interval is pretty long. I'd rather n…
CityBuilder25Community StarterJun 22, 20262023 Mercedes-AMG C43 4MATICSouth Florida13 replies0 helpful
2021 Range Rover Sport HSE — first used oil analysis — what should I care about?
Thinking about sending an oil sample in mostly to establish a baseline. For a normal street car, which numbers are actually useful over time and which ones do…
2022 Honda Accord — coolant is old by age but mileage is low
2022 Honda Accord 2.0T Sport, about 91,000 miles. The vehicle has relatively few miles but the coolant is several years old. I am trying to prioritize maintena…
ColdStartBuilder211Community StarterJun 21, 20262022 Honda Accord 2.0T SportWashington DC2 replies0 helpful
2023 GMC Sierra 1500 — brake fluid is old but still looks clean — anyone dealt with this recently?
2023 GMC Sierra 1500 AT4, about 44,000 miles. Fluid looks clear in the reservoir but has been in the car for several years. Would you change based on time/mois…
GarageGarage872Community StarterJun 21, 20262023 GMC Sierra 1500 AT4Salt Lake City3 replies0 helpful
2022 Mercedes-Benz GLE — short-trip driving and oil-change intervals
The car gets lots of cold starts, idling and short trips with few long highway runs. The factory interval feels long for that use. How would you set an interva…
CommuterWrench707Community StarterJun 16, 20262022 Mercedes-Benz GLE 350 4MATICAtlanta5 replies0 helpful
2022 Genesis GV70 — first used-oil analysis: what matters?
I am thinking about sending an oil sample to establish a baseline. For a normal street engine, which trends are actually useful over time and which one-off num…
2004 Honda S2000 — coolant is old by age but mileage is low
2004 Honda S2000, about 228,000 miles. The vehicle has relatively few miles but the coolant is several years old.