Oil choice dilemma ....

alot of you have been following my build thread on here

i am coming up on 315 000 kms and i want to change the oil on that mark

last service was just before 310 000 kms and i changed from Honda FEO 10w30 to Honda FEO ULTRA 5w30 Synthetic - using a J's Racing Sump Plug

ever since i changed to FEO Ultra the car has been using a little bit of oil each week - every time i check it it needs a small drink - but when i was running normal FEO it never moved

i think the car feels just a touch rougher with the FEO Ultra in it as well - but that could be just my mind playing tricks on me

so should i go back to normal FEO? or stick with FEO Ultra?

also would i benefit from using some supermarket oil during the change to give the system a flush?

go bak to old 1 mate. reason coz i had use thinner oil in in my daily car and LMAO car didnt start after oil change.

Quote:

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Originally Posted by honda_zivic

car didnt start after oil change.

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are you serious? you changed your oil and your car wouldn't start? that seems very very odd

yea man im not talking shit. used 15/60 or sumshit cant remember, then when try start the car and it wont even crank.L0L
then kept trying eventually it started, but then it blew blue smoke like a bomb in my garage, so i turnt it off. then try start again and it never started.
then drain oil out and top up old oil and still didnt start even i took out the sparks plugs.but till nxt day i think the oil went down from top cylinder and it started.but it blew blue smoke full on for like a week then slowly disappeared.

fkn weird shit ever. ask like how many mechanics an they were just clueless. hahaha
so if u know whats the cause tell me man i been wanting to know.LOL

oh and my mates s13, he did a oil change and that shit NEVER STARTED. so he sold d car. LOL

Quote:

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Originally Posted by honda_zivic

yea man im not talking shit. used 15/60 or sumshit cant remember

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WAAAAY to thick oil - engine probably couldn't manage it

iv been running FEO Ultra for a few months now and the only real problem is that the engine eats up a bit of it every week

FEO is a mineral oil and FEO Ultra is a semi-synthetic

im just wondering if the benefits of FEO Ultra are worth it or not

There is a certain oil made for engines with that sorta kms if i recall, though odds are its a mineral based oil, as said, stick to the one oil an let it live its life lol

Im not at all surprised that going to a thinner oil resulted in oil usage in an engine of that age.

Not only this, but the Semi Synth contains more, and stronger "detergents" than the pure mineral oil, which means that it dislodges more of the crud that is built up around the engine.

So what could have happened, especially in an engine with 315000kms, is that you put the Ultra in, it did a good job of cleaning the engine out, probably cleaned out the build up around the rings, other seals etc And then combined with the thinner oil, its slipping past the oil rings, and burning a small amount.

If i were in your position, id just go back to running the normal mineral based 10w30

Quote:

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Originally Posted by trism

Im not at all surprised that going to a thinner oil resulted in oil usage in an engine of that age.

Not only this, but the Semi Synth contains more, and stronger "detergents" than the pure mineral oil, which means that it dislodges more of the crud that is built up around the engine.

So what could have happened, especially in an engine with 315000kms, is that you put the Ultra in, it did a good job of cleaning the engine out, probably cleaned out the build up around the rings, other seals etc And then combined with the thinner oil, its slipping past the oil rings, and burning a small amount.

If i were in your position, id just go back to running the normal mineral based 10w30

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cheers for the advice

should i bother cleaning the engine out with a supermarket oil - or just do a normal change?

nah because its not like the oil was contaminated.

So a normal change would be fine.

a 5w30 shouldn't have effect the car at all, its just oo thin that its seeping pas the rings due to worn/old rings.
It it was thicker than i would say maybe, but even then i managed to change my car with a 15w60 in an old celica and it still worked though it was really running bad.

Just change back to the FEO normal, not need to flush, its not enough to cause any problems.
You should be happy that the normal FEO doesn't burn with the amount of kms you got on the car.

P.S where u getting Ultra FEO from? i haven't seen any around here in sydney yet.

you can get FEO ultra at most if not all honda dealers - I get it thru trivett @ rydelmere.

PS switch back to FEO. Or go to supercheap auto and get "calibre 10w30 " oil - same thing but cheaper and 5.5l too