QuestionI have a 97 Accord. Recently the front brakes have started to "squick" (make noise when braking) so I know is time to change them. But I was told by a mechanic that I also have to change the "drums" (not sure of the name) the disk where the brake pads are attached to and with time it gets worn out. How do I know if this is correct? this is the first time changing brakes. Can I go ahead and request the brakes only or is it a rule to change the whole thing?
Facts: 112K miles most of it freeway miles since the start but more city driving the past 3 years mixed with a lot of freeway miles as well.
One more question if I may regarding fuel: Is it ok to use the lowest octane or do I need the highest (specially now with high prices).
I do appreciate your comments it will help me in my decision. Accord XL 4 door sedan 1997.
AnswerOkay Letty,
Some vehicles come with DRUM brakes in the rear, and these are different from DISK brakes (which you've got in the front)in that they are less serviceable. Disk brakes can be "turned", or surfaced to straighten them out. If you've haven't had any service yet, then you can probably get a private shop to turn them for you. As for the rear brakes, if they're drums, I would replace them.
References for you...
http://auto.howstuffworks.com/drum-brake.htm
http://auto.howstuffworks.com/disc-brake.htm
www.hondaautomotiveparts.com -----to purchase inexpensive Honda OEM parts
Gasoline...For Honda's lower performance engines, it should be okay to use lower octane gasoline, however, you should consult the owner's manual to be sure. If you decide to use low octane fuel anyway...the computer in your car will retard timing, reducing power, but saving the engine (so it's probably okay).
The octane rating is a degree of anti-knock. Your compression ratio(typically ranging from 8:1--11.5:1) pretty much determines combustion temperatures. Since more pressure means higher temp., the higher the ratio, the higher the combustion temp. A high octane fuel rating will help prevent the fuel/air mixture from pre-igniting (or detonating) in the chamber (due to the high temperatures)if your engine was designed with a high compression ratio. Diesel engines rely on these high temperatures alone for combustion (NO SPARK PLUGS), so they've got compression ratios as high as 25:1. That's why they've got a lot of torque.
