Just my .02 on this, but.... FWIW, there is no way I would leave the same oil in my engine for a year!! Even if it was only driven a thousand miles. There would be some acid build-up in the engine oil if left this long. And NO synthetic oil brand would be able to prevent this. Funny how technology has improved over the years. I am old enough to remember when 1,000 miles per quart of oil consumed was considered normal! I am now using a quart about every 800-1,000 miles, and bitching real loud about it!! See my posts on my "great" Blackwing air filter, if you can call it a filter!!!!

 

This is crazy talk. Rings don't magically seat themselves from babying your car after you have put 22k on the motor. The window for seating the rings is the first 100 miles on fresh rings by putting a load on the motor not babying it! All you've proven is that there's less blow by when you drive your car easy.

 

I'm with you on the acid buildup. IMO one of the worst things you can do to an engine is NOT use it. If you get your engine up to operating temps for about 15 minutes minimum you'll evaporate out most of the water vapor out of the crankcase. That vapor is what mixes with the oil and forms acids.

Time wise GM thinks a year is OK. As far as mine is concerned, that's why I get oil analyses done. I didn't go to 0% initially, but worked up to it based upon what we were seeing in the analysis.

Honestly, I'd just as soon change my oil more often, because that would mean I'm driving my dream car more often!

Have a good one,
Mike

 

 

I've read so many threads on this topic it makes me
I drive my 99 a min. of 100 miles a day 5 days a week, about 30% stop and go, 30% mountain road, 30% highway That's my commute, all the while beating on it as much as possible. It has averaged about 1qrt/1000 mile consumption since day one, I now have 139K on it. The 1st 50-60k it kind of freaked me out but since it did not get worse I learned to live with it. At about 100k I upgraded to the LS6 valley cover and PCV system, AMW catch can and a bunch of other mods, motor still uses about 1qrt/1000mile. My OLM hits 0% at aprox 5K but since I add 5qrts of new oil in that 5k I usually let it go another 1-2K before doing a oil/filter change. As I said, I now have 139k miles on it and the car runs stronger then ever with the help of a few mods and no change in oil consumption. Go figure.

 

Vinny
You got nothing to worry about, my LS1, used about the same amount, maybe a little more depending on how I drove it. Madonna wishes she was half as tight as your engine!!

 

I was of this opinion, same as you, about extending the oil change due to dumping fesh oil in every 1,000 miles or so. Since our daily mileage figures jive pretty close as well, I would like to add this: I also have a magnetic oil drain plug. It was damn cheap, maybe $5.00, and works damn good. BUT! (Always a but, and not the right kind!! ) I truly believe that the oil filter capacity on the LS motors is too small. Maybe even for a stocker. With a more serious motor, say with a power adder, stroker, etc., I think there is definitely room for improvement. I left my oil in too long, too long being maybe 7,000 miles or so, and I used a teflon based friction reducing additive. I noticed the oil pressure dropped a slight amount at around 4,000 miles or so, and when I added a quart of new Mobil 1, it made no difference. Then the oil temp went to 235 degrees, even with the outside temps being in the low 50 degree range. And with an oil cooler, too. I believe that this small filter plugged, and the oil was routed around the cooler, hence the increase in oil temp. And thinning of the viscosity. And resultant pressure drop. Yes, I believe the teflon additive was part of this situation, but this filter is the same size, or very close to it, as a Fram 3387A, which came on my 1983 Pontiac J-2000 and it's 1.8 liter motor! I now make it a point to change the filter out after 4,ooo miles or so, and with my magnetic drain plug grabbing the small fragments, feel it is O.K., as you do, to then run the oil a more extended time, as it is getting a fresh quart every 8-10 days. It can never hurt to change the filter, and they are, what, 5 bucks or less at Wal-Mart.

 

Thats the same rational that I have on the situation,except with this previso.Yuo can skuff the cylinders as the factory did when they introduced the v/8 in '55.They recommended to the dealers to put bon ami in the carb to seat the rings....It worked fine....

 

And, gee, nothing has changed in engine manufacturing techniques and technology in the last 50 years, and oil formulas are the same too.

 

[QUOTE=fdxpilot]And, gee, nothing has changed in engine manufacturing techniques and technology in the last 50 years, and oil formulas are the Well I guess they forget from time to time,but it is the same problem isnt it...the oil aint got nothin to do with it,say how are you & the planet memfo doing these dazes.Raided any more companys??? There was another one of you guys on here one time,I believe he is called poRk chop or something like that.Be sure to keep up with yr emergency ck.lists now,thats just as important as yr vette.

 

Where do you get a valve cover breather at?