Alright this started life as the timing 101 post but kinda led to more questions. What I'm looking for here is kind of a definitive answer to this question so hopefully the title to this post gets the attention of enough people that have had this issue.
I changed my oil the other day and put in Castrol syntec 10w-30. I've used castrol syntec for years in my other vehicles and trust it. My car has 79k miles on and I've never had any issues making the switch from dino to synthetic on any of my other cars. I made the switch on my 95 lumina at 81k and it has never burned a drop of oil in its 216k lifetime.
Anyway, on to my point. I recently purchased my 79k DX and promptly went to work getting everything tuned. One thing I noticed was after and extended warm up period I will get noticeable blue smoke after I get in and head down the road. It burns off after a minute and doesnt come back until I do the same thing. Warm it up for an extended period of time. Now it may be smoking on the startup but its kinda difficult when the temp is -5 cause theres a lot of water vapor masking it I'm sure. Also, isnt 79k a little early for valve guides to be worn? Thats also why I suspect that it just may be the castrol syntec.
I know the history on this car and it was my mother-in-laws for the last 7 years of its life and I dont remember it ever smoking on startup. Would my switch to synthetic cause this? I suppose I could always switch back to dino oil and see what it does but I just flat out plan on running castrol syntec in it from here on out. If it is the synthetic causing it I guess I just plan on living with it and get used to it. One of the other things I have seen is a post saying that a catch-can ( Correct Name ? ) hooked up to the pcv or something like that will lessen this. If so what is that and how do you install it?
Sorry so long
Thanks
Mike
I changed my oil the other day and put in Castrol syntec 10w-30. I've used castrol syntec for years in my other vehicles and trust it. My car has 79k miles on and I've never had any issues making the switch from dino to synthetic on any of my other cars. I made the switch on my 95 lumina at 81k and it has never burned a drop of oil in its 216k lifetime.
Anyway, on to my point. I recently purchased my 79k DX and promptly went to work getting everything tuned. One thing I noticed was after and extended warm up period I will get noticeable blue smoke after I get in and head down the road. It burns off after a minute and doesnt come back until I do the same thing. Warm it up for an extended period of time. Now it may be smoking on the startup but its kinda difficult when the temp is -5 cause theres a lot of water vapor masking it I'm sure. Also, isnt 79k a little early for valve guides to be worn? Thats also why I suspect that it just may be the castrol syntec.
I know the history on this car and it was my mother-in-laws for the last 7 years of its life and I dont remember it ever smoking on startup. Would my switch to synthetic cause this? I suppose I could always switch back to dino oil and see what it does but I just flat out plan on running castrol syntec in it from here on out. If it is the synthetic causing it I guess I just plan on living with it and get used to it. One of the other things I have seen is a post saying that a catch-can ( Correct Name ? ) hooked up to the pcv or something like that will lessen this. If so what is that and how do you install it?
Sorry so long
Thanks
Mike
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