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#1 |
Registered User
Join Date: Jan 2002
Location: Springville, UT, USA
Posts: 1,010
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different oil fixed the blow-by?!?!?!
My tired old 350 2 weeks ago had nothing but tons of blow-by when it started up.....I talked to my mechanic and he suggested that I change the oil with this combination.....he said to do an engine flush not once, but three times with a flush kit and standard valvoline oil each time......then he said to buy 2 bottles of valvoline max life and a bottle Mobile 1 synthetic and one bottle of Lucas oil stablizer. He said the Mobile 1 is awesome but it doesn't get the pistons lubbed like the maxx life can but he said the mobile one makes it a better oil. And the oil stableizer by Lucas thickens it. So I did all of that and wouldn't you know it, no more blow-by and I'm not burning oil like I was. It this a cheap trick or just something the engine was lacking. Because I can really feel the ponys and it runs so smooth now. I thought I was due for an engine rebuild. He also mentioned that a GM dealer is now using Max life and mobile 1 blend in their new cars once they reach the dealership. Anyone else heard of this?
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#2 |
OBS guy
Join Date: Jun 2004
Location: SoCal
Posts: 1,060
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Re: different oil fixed the blow-by?!?!?!
I haven't heard, but am very interested to hear the experiences of other. My truck only lets out a puff of smoke on start up and that's it. I might have another problem though, probably valve seals.
Keep us posted on how it does when you get some more miles on it.
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88 Suburban Goodies- Alpine, Auto Meter, BDS, Bilstein, B&M, BFG, Borgeson, Bushwhacker, Cowl hood, Flowmaster, Genuine Gear, Holley, Infinity, JVC, K&N, MB Wheels, MSD, Pioneer, Skyjacker, Sony, Thorley, Walker + more |
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#3 |
Senior Moment
![]() Join Date: Mar 2002
Location: Pittsburg Ca
Posts: 4,139
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Re: different oil fixed the blow-by?!?!?!
You need to be aware of compatibility issues between oils especially mixing synthetics with non synthetics. I work for a Major oil co and blend oils in the lab on a daily basis. Some oils just don’t mix well with others and can cause the oil to gel. I can’t say for sure about your miracle mixture, I'm just saying its not a good idea to mix. Good luck
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1970 CST LS 1 6 speed Ford 9 inch Detroit Tru Track, Dakota Didgital, Vintage Air, QA1 Coil Overs Front & Rear Lots of FUN 2013 GMC PU, Oldest Son 71 GMC LWB. QA1 Suspension, Angry SB. Youngest Son 2019 GMC Diesil Dually. Youngest Son 2017 Toyota SUV Daughters car 2018 Traverse , Wife’s Ride Pittsburg Ca 94565 |
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#4 | |
Senior Member
Join Date: Nov 2006
Location: Yukon Oklahoma
Posts: 2,647
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Re: different oil fixed the blow-by?!?!?!
Quote:
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#5 |
Registered User
Join Date: Dec 2004
Location: Northern AZ
Posts: 7,271
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Re: different oil fixed the blow-by?!?!?!
Blowby can be caused by build up on the rings and flushing the motor three times proably cleaned up the rings a little and allowed them to seal up. Max life or any high mileage oil is supposed to condition old seal, gaskets etc so the valve stem seal thing could be helped out with using the the high mileage oils. Try it they are a little more than regular oil, so you won't be out much if it doesn't work and it won't hurt anything if it doesn't help. As for incompatable oils, I have never heard that and on every bottle of oil I've seen says it'll mix with anything, as a matter of fact the cheaper alternative to full synthetic is a blend of regular and synthetic from the manufaturer. I personally only use Royal Purple, but it says no compatibility issues and I had over 50k on the Yukon XL when I rolled it (and it was running perfect when I put it on the lid!)
Last edited by 70rs/ss; 12-15-2006 at 02:28 PM. |
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#6 |
Registered User
Join Date: Oct 2006
Location: maple ridge, b.c., canada
Posts: 190
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Re: different oil fixed the blow-by?!?!?!
Your special blend must have temporarily sealed the rings to stop most of the blow-by. I quess if it works for a while, until you can rip the engine apart it would be ok. However, it will not fix the engine long term. When you have blow-by, the rings are not sealing fully, and some compression is bypassing into the crankcase.
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#7 |
Senior Member
Join Date: Jan 2003
Location: daytonabeach
Posts: 22,956
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Re: different oil fixed the blow-by?!?!?!
in the old days with old engines we'd just run 50weight oil till we blew the engine up to solve the problem
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71c-10 350/2004r/4:11 lowered3/4 longbed/dead by hurricane MEANING OF DEATH::::: SOMEBODY ELSE GETS YOUR STUFF DONT BELIEVE EVERYTHING YOU THINK TAKE MY ADVISE;I DON'T USE IT ANYWAY |
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#8 |
Registered User
Join Date: Jan 2002
Location: Springville, UT, USA
Posts: 1,010
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Re: different oil fixed the blow-by?!?!?!
And you already had the replacment engine built and ready to go with some beefed up roller rockers and high rise intake which the old one didn't have.
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#9 |
its all about the +6 inches
Join Date: Jan 2001
Location: Hilliard Ohio
Posts: 2,693
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Re: different oil fixed the blow-by?!?!?!
my only question is on the engine flush X 3... that scares me. Wre we talking an engine flush where they dump solvent or kerosene into the motor? If so.... I highly advise to never to that again.
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#10 |
Registered User
Join Date: Jan 2002
Location: Springville, UT, USA
Posts: 1,010
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Re: different oil fixed the blow-by?!?!?!
hey Longhorn.....how are ya man? You still roaring that caddy engine?
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#11 | |
Registered User
Join Date: Apr 2006
Location: oklahoma
Posts: 10,670
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Re: different oil fixed the blow-by?!?!?!
Quote:
Aaron |
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#12 |
its all about the +6 inches
Join Date: Jan 2001
Location: Hilliard Ohio
Posts: 2,693
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Re: different oil fixed the blow-by?!?!?!
but of course i am...punishing the rear tires on a daily basis.
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#13 |
Senior Member
![]() Join Date: Jul 2004
Location: Estherville, Iowa
Posts: 3,371
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Re: different oil fixed the blow-by?!?!?!
Bought a parts truck a few years ago with a 327 that had sat several years. Used that engine as a temporary engine and it had a fair amout of blowby. Pulled the engine to install good engine and we lubed the bores good with WD40 before we stored it. 6 months later we put the old 327 back into service again in another truck, and it now has almost no blowby ! WTF ? Only thing we can figure is that the WD40 loosened up the rings while it sat. It must be possible to unstick stuck rings with the right stuff !!
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