Cascade Crew

GREG DAVIDSON · Posted: Tue Sep 02, 2008 10:36 pm Post subject: smokes a bit

my 90 305 tbi smokes quite a bit at idle and start up specilly since i put our bulk oil of 5/30 chevron oil in from work eh it was free Smile

it is burning some oil but nothing more typical than a car with over 155000 miles on it its blue anthing to really worry about ?? i know they smoke anywho

Schultzy89GTA · Posted: Wed Sep 03, 2008 7:32 am Post subject:

Smoke on startup, or the 'chevy salute', is often attributed to worn valve stem seals. I would keep track of the consumption, that is how many miles before you have to add a quart of oil to top off, for a period of time to determine if it is excessive.

If usage is excessive it may indicate a more serious issue. For what it is worth, My brand new 1988 Trans Am gave the chevy salute about 10k miles into it's life. Was never really an issue, just a bit embarassing Wink

-Schultzy

blue89 · Posted: Wed Sep 03, 2008 8:06 am Post subject:

I'm sure the 5/30W has something to do with it. Thats really thin for a high mileage motor. I run 15/30W in my 189k mile truck and I noticed the oil consumption drop.

aaron_sK · Posted: Wed Sep 03, 2008 9:54 am Post subject:

GREG DAVIDSON · Posted: Wed Sep 03, 2008 9:57 am Post subject:

how is that roysal purple stuff ? i was thinking bout trying it out if i ever get my engine rebuilt , but im deff going to switch it over to my normal castol syntec this weekend when i get paid

Dewey316 · Posted: Wed Sep 03, 2008 9:59 am Post subject:

I would just get some Delo 400.

aaron_sK · Posted: Wed Sep 03, 2008 10:04 am Post subject:

You can get three quarts of Delo for the price of one quart of RP, Greg. Very Happy

Paul was mentioning hot pressure problems with the Delo, but my RP still only has maybe 13-15psi at 750rpm when fully hot.

GREG DAVIDSON · Posted: Wed Sep 03, 2008 10:06 am Post subject:

i know we have 15/40 delo at work we use in the deisels i hust firgured it was way to thick

Dewey316 · Posted: Wed Sep 03, 2008 10:11 am Post subject:

That is wahat i am running, is the 15/40 Delo. i am not having any issues.

But, my motor does have 240k miles, and gets abused pretty good.

GREG DAVIDSON · Posted: Wed Sep 03, 2008 10:18 am Post subject:

little to thick for my liking right now i'll put thicker in it this time if it keeps up the smoke i'll try the lucas oil stuff again i've seen it work before maybe i'll get lucky

blue89 · Posted: Wed Sep 03, 2008 10:33 am Post subject:

for oil, 15/40W would be a viscosity rating of 15 hot and 40 cold right? Since 15 is nearly stock it wouldn't be very thick at all but almost right?

Dewey316 · Posted: Wed Sep 03, 2008 10:34 am Post subject:

15 cold, 40 hot.

We live in a pretty temperate climate, so I don't worry about running a little heavier oil.

fiveoformula · Posted: Wed Sep 03, 2008 10:46 am Post subject:

The 5W-30 is probably a bit thin, does it make any valvetrain noises?
even a small block in it's prime, I would recomend atleast a 10W-30.

blue89 · Posted: Wed Sep 03, 2008 10:48 am Post subject:

http://www.valvoline.com/carcare/articleviewer.asp?pg=ccr20040601ov

It seems counter intuitive that oil gets thicker as it heats up. Ah well. Learn something new (or things i forgot again) every day.

fiveoformula · Posted: Wed Sep 03, 2008 10:54 am Post subject:

Well it makes sense for oil to be thinner at start-up so the oil can quickly pump thru the engine so you don't have a dry start.

mrpopo573 · Posted: Wed Sep 03, 2008 11:24 am Post subject:

GREG DAVIDSON · Posted: Wed Sep 03, 2008 2:08 pm Post subject:

i'll do the 15/40 delo soon and get back to you and let you know how it does thanks

aaron_sK · Posted: Wed Sep 03, 2008 10:14 pm Post subject:

Twilightoptics · Posted: Wed Sep 03, 2008 10:20 pm Post subject:

How accure is your pressure gauge john? I've got the autometer on and it's pretty sensative. The Delo is definitely a low pressure high temp oil. Right off idle pressure is up though. Since I'm no cop car I don't idle around lol.

20w50 isn't too thick for around here. if we're in sustained 20F below temps maybe think about 10w. Especially on a high milage motor.

GREG DAVIDSON · Posted: Wed Sep 03, 2008 10:35 pm Post subject:

i havnt seen 20 deg since i moved out here from wisc lol dont care to ever again Laughing

i think i'll try the delo first just to see it could'nt hurt to much when i drive her to ptown for the meet then prob switch it when it gets a tid bit colder ... kind of an advantage of working at a quick lube