I use synthetic oil for my 2002 accord, the engine oil keep getting lower after a few weeks, and I keep having to pour more oil. Is this normal?

 

All cars burn oil to some degree. Some more than others and some less.

It depends on how much you are having to add each time, engine operating conditions, etc.

About how much do you have to add each time?

Any noticeable leaks?

Bluish exhaust smoke?

Has the PCV valve ever been changed?

This link has info. on the location of the PCV valve.

PCV VALVE - Honda-Tech

 

To give you a more precise answer you need to provide us with how much oil you're adding and how many miles you drove since you last added oil. The thing is, some folks drive over a thousand miles every two weeks and some folks drive only a hundred or two.

 

Also how many miles on the car? How many miles between adding oil. That reminds me I need to check my oil. It's been 5k since I change it.

That said, I love not being a Honda repair expert. Have a Ford Fiesta?, contact me, I know what's wrong with it as I had all the problems.

 

My 02 Accord v6 has 102K miles. I use 5-20W synthetic Mobil oil because it says 5-20W on the cap of the engine. My v6 accelerate very bad. Sometime I floored the gas but the car accelerate slower than normally.

I just hear my uncle says that I should use thicker oil like 10-30W because my car is old. Should I use thicker oil from now?

 

Do NOT use 10W-30 in your car; definitely the incorrect oil.

If your car has bad acceleration then something else is going wrong, possibly a slipped timing belt (when was the last time it was changed?).

FWIW, I have basically the same car as you (only in 2001 trim), it has 160,000 miles on the odometer and it has been fed a diet exclusively of 5W-20 and 0W-20; it accelerates very strongly and uses very little oil between 7,500 mile oil changes.

 

Thank for the infos. My water pump and timing belt was changed at ~90K miles which is a year ago. I paid the mechanic $570 cash. After that my car's acceleration is very annoying. A few days in a year, it accelerates very smooth, and most of the time very slow. Should I bring it to another mechanic for adjusting my timing belt? Omg, have to spend more $$

My mpg is 19-20mpg(I dont race, I press hard on the gas when needed)
Vtech almost never kick in

 

Hmmm, something's very wrong, and it may well be the timing.

Things I would check:

• Timing
• Upstream O2 sensor
• Clogged catalytic converter

FWIW, my 2001 V6 Accord NEVER gets worse than about 24 mpg no matter now hard I drive it, and when I take it easy on the highway I can get about 30 mpg.