which engine is btter 98-99 or 2000-2002?

[yoshiki2]

what engine is the one that doesn't burn any oil? or both of them do it?

[Clayton1984]

All 8th gen Toyota engines burn oil.

The problem was substantially reduced in 2003+

[Blaam]

the 1zz-fe engine released in the us in 98 was in all 8th gen corollas. as far as oil burning i would take a look at each individual vehicle as they all have the same engine. the oil burning condition is a problem with high-milage engines in which is called 'blow-by'. blow by is when oil under pressure gets bast the piston rings into the combustion chamber....not the easiest repair i might add.

my recommendation is to find a corolla, 8th or 9th gen with less then 200k miles.

[Kyle Hamelin]

Originally Posted by Clayton1984

All 8th gen Toyota engines burn oil.

The problem was substantially reduced in 2003+

This is incorrect as I have a 2001 LE model that drops only 2-3cm on the dip stick after 5000km+ of driving on it. Also my car has 200,000KM on it.

[ilovecorollale]

Well my 2001 le never burns oil at all...well its actually at 100700 miles, is that high or low???

[sam333]

They all( 98-2002) have the potential to burn oil because of the poor piston design. I have not heard of one person running synthetic oil that has major oil burning problems though.

[Kyle Hamelin]

Originally Posted by sam333

They all( 98-2002) have the potential to burn oil because of the poor piston design. I have not heard of one person running synthetic oil that has major oil burning problems though.

This is true. I always put full synthetic castrol oil in mine.

[PhatRoyale]

Originally Posted by ilovecorollale

Well my 2001 le never burns oil at all...well its actually at 100700 miles, is that high or low???

Assuming that you take care of your car, that's barely broken in.

[Highway_maniac]

As far I know, the problem of oil burning has 2 causes:

- wrong materials used fot the oil scrape rings.
- oil channels in piston insufficient.

The first problem was solved in 2001 as far I know. The oil burning problem was not fully solved, Toyota re-designed the piston, doubling the oil channels (from 4 to 8). Also heard they enlarged the oil holes. This was done in 2003 as far I know.

There is a TSB for the oil burning, also describing the cause of the problem.

[sam333]

Originally Posted by Highway_maniac

As far I know, the problem of oil burning has 2 causes:

- wrong materials used fot the oil scrape rings.
- oil channels in piston insufficient.

The first problem was solved in 2001 as far I know. The oil burning problem was not fully solved, Toyota re-designed the piston, doubling the oil channels (from 4 to 8). Also heard they enlarged the oil holes. This was done in 2003 as far I know.

There is a TSB for the oil burning, also describing the cause of the problem.

Do you have a link to the info about the rings being the wrong material?

The holes were doubled in number( 4 to 8) and in diameter( 4x the area)also the holes were repositioned from entirely in the ring grove to half in the ring grove and half below (for better oil drainage/flow).

The only pistons toyota sells now are the revised ones , but they only sell them in standard sizes, so if you need a rebore, then you will have to go with an aftermarket brand. From what I have seen most of the affordable aftermarket pistons for this engine have the original small four hole design ( Nippon
Piston Ring sets about a $100). You can always go with high end forged aftermarket pistons( about $500 a set).

[01loadedLE]

[the oil burning condition is a problem with high-milage engines]

My car was burning oil from the start when it was new. I was shocked to find the oil halfway between the Full and Add dipstick marks after a month of driving around 1200 miles.

[militarydave]

I have a 1999 CE with the 4spd auto with approx. 171,278 miles on it. the old lady (1 owner) took it to toyota every time for EVERYTHING. I mean EVERYTHING. light bulb? dealer. wiper blades? dealer.

Got the car for $1500.

She was using 5W-20 (well the dealer was) conventional (snake/dino oil).

I switched it to 10W-40 - High Mileage.

I'm pretty damn sure if i put FULL SYNTHETIC (such as Royal Purple or Mobil 1) i'll get an oil leak, as those seals are accustomed to the snake/dino oil.

thus far, i'm getting 34-36 MPG with A/C on half way doing a consistant 80-85 MPG for a straight 26 mile tollway.

i also drive the complete batshit out of it. i got it with 167xxx on the clock.

[militarydave]

oh yeah.. doesnt burn a tear drop of oil.

[Highway_maniac]

There is a service bullitin Toyota, don't know the numer. But check this out:

https://docs.google.com/fileview?id=...NjBiMDYx&hl=en

It has lots of information about the problem. 1ZZ-FE engine is named in the document.