Blowby... switch back to regular?

[bobbys9350]

http://s21.yousendit.com/d.aspx?id=1A6DRC4C5YYJ21GRTMJK4SZR9G

does it look like i have some blowby? or could i possibly be running really rich?
m running Amsoil 10w-30, should i switch to Valvoline VR-1 Racin 10w-40 or 15w-50??? thanks!

 

[90LX306]

Looks like its got some blue in it to me, ho9w many miles the motor have on it?

 

[ECU5.0]

www.bobistheoilguy.com check out that website....and try auto-rx. im in the first cleaning phase right now on my car and i can tell a difference.

 

[bobbys9350]

cool, thanks a lot! 111k on the motor

 

[bobbys9350]

anyone else?

 

[Stang8URMPRT]

It's blue. Car is burning oil. Motor's gunna blow.

 

[DMAN302]

Changing to a high milage oil may help, but facts are facts..if your engine has higher milage (which yours does) wear will become an issue. Laying down some blue does not mean your engine is on the verge at all, hell was buring a quart every 500 miles when she was at 200,000 and still ran like a violated rabit. Keep an eye on the oil level, take care of her and don't give it a second thought for now.

 

[kystang1889]

pull you dipstick out and see if it lights on fire if it does you have fuel in you crankcase and getting blowby, also go out on a street (or at the track) and do a WOT and then kill the motor emidieatly after pull your plugs and see what they look like it there a gloss black its fuel charcol is oil

 

[bobbys9350]

thanks for the help! do you think it just might be valve seals?

 

[HISSIN50]

if you get the puff of blue smoke at start up, that suggests valve seals

 

[jaackal]

i would run a thicker CONVENTIONAL oil and see what your results are. IMO, synthetic oils are not good for high mileage cars.

 

[bobbys9350]

allright coll guys, i have another quaetion tho... the car has 111k miles and the PVC has never been touched. could this not allow crankcase ventilation causing all that pressure to force oil up past the rings? i plan on changing the PVC valve tommorow and if that doesnt cure it im gonna go back to regualr, probally that Valvoline VR-1 Racing. can i run 15-50 in 70-80 degree temperature range? and then 10-40 when its 40-60? thanks guys!

 

[HISSIN50]

PCV tends to blow oil past seals when backed up.

if lower weights are not cutting it, that should be alright to run either weight you propose. i run 20W-50 in the summer here all the time. each motor is different, but you are not reinventing the wheel or anything.

good luck.

 

[bobbys9350]

awsome! thanks a lot! so 50 wont cuse starvation at the track in 70-80 degree weather? thanks!

 

[HISSIN50]

i could not tell ya about starvation at the track - i dont take mine to the track. like i said, each motor is different. But if a thinner oil is burning a bit or you have some other issues, running 15 or 20W-50 shoud not hurt. if you search old threads, you will find quite a few guys in here run 20-50. like i said, i do in the summer (ambient temps over 110*). i normally go up in steps - if 10-30 does not cut it, i will try 10-40. if no good, then go up again.

just my two cents. good luck.

 

[Mark89coupe]

My car has been doing the same thing since 100k miles. It burns more oil if I go heavy on the foot. Im also going to try a heavier weight to see if it changes.

 

[Stang8URMPRT]

If it's smoking when you're revving the engine or "getting on it", it's piston rings. Time for a rebuild. Can't believe someone hasn't said this yet lol

 

[bobbys9350]

you sure it might not be valve seals?

 

[Stang8URMPRT]

Valve seals usually cause smoking at start up. Worse after the car has sat for a while.

 

[bobbys9350]

allright, im gonna change the pvc and run a thicker weight Amsoil, if it doesnt work, im going back to valvoline