Base model 1.8 spark plug & oil change considerations

[BoostFrenzy]

GF has a base 03 auto 2wd vibe (1.8 i4) with about 55k on it, going to switch over to mobil1 synthetic and a purolator filter today, how many quarts, 3.5? also, should i swap out the plugs while i'm at it? the car is stock and is basically just a daily commuter so fuel economy and longer oil change intervals are a must, the car will NEVER be modified and seems to run ok as is (although deathly slow, plugs probably won't improve this)any opinions?p.s. i was going to go with mobil1 5w-30, i've noticed a lot of newer commuter cars call for 5w-20 to decrease emissions and increase fuel economy and since the engine is making no power nor revving very high they call for the 5w-20, is this true with this toyota 1.8?

[nismo]

well, first, i wanna say, welcome to the forums, and second, it is 4 quarts. the manual says 3.9 for the Base Vibe. So, this will be correct for hers. The oil I use is 5w-30. It says on the valve cover what kind of oil you are supposed to use, so that should be easy enough. About the plugs, I don't know anyone off the top of my head that has newer plugs, but here's a link that may be able to help ya out.http://forums.genvibe.com/zerothread?id=10476From what I have heard, the factory sparks on this car great. So, I would find out what kind of plugs the stock ones are, then go to like Murray's/Autozone and buy a set.

[Raven]

Don't change the plugs. You won't get more power and the plugs are good for many, many more miles.

[nismo]

Yeah, I was sayin, if he was going to do that, then this is what i would recommend doing.Inder

[BoostFrenzy]

she got it new and it's been driven pretty conservately, she had the transmission flush done at 50k and i just put mobil1 10w30/purolater filter on (i know, but a subaru owner myself i'm prone to these brands )i'll probably wait on the plugs, manual says 120k so i'm thinking more like 80-90k should be ok, i changed the air filter about 5k ago as well, goal is to have a daily drivable car to get her to/from work (100 miles per day) with little to no repeat matience and hopefully "run it into the ground" with 200+k miles before it gives upis there anything to give it a little more pep short of a ton of bolt ons and making a hobby out of it? Coming from a ~250whp WRX driving this car it feels UNSAFELY slow, getting on the highway is a chore

[ragingfish]

Quote, originally posted by BoostFrenzy »is there anything to give it a little more pep short of a ton of bolt ons and making a hobby out of it? Coming from a ~250whp WRX driving this car it feels UNSAFELY slow, getting on the highway is a choreOutside a S/C, there's not much you can do with it to get a significant increase in power...But personally, I found an intake, while only adding about 7 horses to the actual output, makes it feel like night and day. It's a relatively inexpensive and easy mod to do.

[BoostFrenzy]

Who makes a cheap effective intake?

[Raven]

Cosmo Racing, $109.00, I have one and it works great. I can feel a huge power difference. http://cosmoracing.com/product...d=409

[BoostFrenzy]

are there any problems with the inlet tube diamter and the intake causing the MAF to not read properly? I noticed it's right in the intake path there and not like a GM engine so it's not a hotwire maf directly on the tbody