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I have a 98 honda civic with 125K on it. 80% of my driving is city. I usually change oil every 3000k. it that the best interval for me? also, when do I need to change transmission fluid and coolant?

Answers from the Automotive Experts

Amanda J. Pierce, MBA Micheal, Yes 3k miles is the standard interval. Other fluids typically should be replaced every 30k-60k miles. Transmission fluid should be checked every other oil change, and be changed when the color begins to change from the bright red to a more brown. For optimum protection, change the fluid and filter every 30,000 miles (unless you have a new vehicle that is filled with Dexron III ATF which is supposed to be good for 100,000 miles). For "ordinary" antifreeze, the vehicle manufacturers generally recommend coolant changes every two to three years or 30,000 miles. Others say it*s not a bad idea to change the coolant every year for maximum corrosion protection * especially in vehicles that have aluminum heads, blocks or radiators. But such recommendations may soon be obsolete. Several antifreeze suppliers have just recently introduced "long life" antifreeze formulations that claim to provide protection for four years or 50,000 miles.

Barb Petrey, President - DBK Enterprises Inc at Jiffy Lube Changing your oil every 3000 miles is good. As for transmission fluid it should be changed every 24 months or 30,000 miles. Coolant exchange is reccomended every 3 years or 45,000 miles

Laurie Sarno, Co-Owner at Super Girls Auto Hello Michael- you are doing great with your oil changes- we also recommend 3000k oil change intervals ( except for diesel)- you may also want to use a synthetic or synthetic blend oil as the will help with engine life- Coolant should be changed every 2 years - as far as your transmission fluid (if automatic)- if it has not been changed on a regular basis DO NOT change it only add more as fluid replacement may cause problems with the transmission due to the fresh additives used in new transmission fluid-it can remove the friction material from the clutch discs - hope this helps- thanks Super Girls Auto.

Pat Fleischmann, Director of First Impressions at Community Tire Pros & Auto Repair Michael.. Always check you owners* manual for recommended services required for your vehicle. By following their schedules, you*ll keep your Honda even longer..your trusted ASKPATTY.COM local facility can follow your manufacturers* services for you and track it. Don*t forget you have wear items to look for such as Timing Belt, etc. Do keep in mind that where you live in the country also determines some services needed sooner. Such as AZ, our weather is extreme with heat & dust! Vehicles here need to be serviced sooner in some cases due to the weather! Preventative Maintenance is the KEY to keeping your Investment longer... Pat Fleischmann

Suzanne Grego, Technician at City of Philadelphia Fleet Management Michael, Actually, the quality of oil is so much better than it used to be that I usually recommend every 5,ooo miles for an oil change. As for the transmission fluid, I would only change it on a vehicle with that many miles if I was absolutely sure it had been done at regular intervals in the past. If the transmission fluid has never been changed, I most likely would not start doing it now. If it has been serviced regularly, consult your owner*s manual for a maintenance schedule for that and the coolant. If you don*t have an owner*s manual, you can call a local Honda dealership for the information. Suzanne

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