Thread: I made the mistake.
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12-22-2014 07:23 PM #1
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12-22-2014 08:45 PM #2
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12-23-2014 05:17 AM #3
Hey!!Discussions about oil will vary greatly on what to use. From what I understand is that the base for synthetic will never break down as petroleum base will.The additives added to both will break down.So with that said it should not matter which oil you use(if you have a flat tappet cam zinc is needed).I use 5-30 Castrol Edge full synthetic in everything with a gas engine.2006 and 2008 daily crap drivers(change oil every 10000 miles),37 chevy truck(305)add zinc,32 ford(8BA flathead)add zinc,Wright stander comm mower(18 hp kaw),sears snowblower,generator(briggs).And not one leaks oil(even the 8BA).Thats my story!!Opinions will vary. http://www.ferrarichat.com/forum/faq...=haas_articles (posted this before) PeteLast edited by prpmmp; 12-23-2014 at 05:23 AM.
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12-23-2014 08:09 AM #4
My understanding is, you should not use synthetic oil for the breakin period of the motor (use the breaking oil recommended by the motor builder), as synthetic oil may not allow the rings to seat properly, causing excessive oil consumption (blow by).
If you have not run the motor, you should be able to just drain the oil and replace the filter (save the oil and filter), install a new filter and fill up with breakin oil. After the breakin period, change the oil using your recovered synthetic oil for a short period of time, then replace with new oil and filter.
However, you may want to run conventional oils with additives for a little longer than the breakin period (see your motor builder for recommendations), to assure everything is mated properly before using synthetics.Last edited by 36 sedan; 12-23-2014 at 08:14 AM.
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12-23-2014 08:16 AM #5
There are a LOT of myths, misconceptions and misinformation regarding synthetic oils. Many high performance engines have left the assembly lines with full synthetic oils, Corvette, Ferraris, etc. I've built a number of engines and used synthetic oil (usually Mobil1) on the piston skirts and rings during assembly, used the same oil for break-in without any issues. The important factor is using proper break-in procedures. As mentioned by others, if you have flat tappets, etc be sure to follow that manufacture's suggestions.
Mike
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12-23-2014 08:19 AM #6
I stand corrected Mike and humbly butt out.
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12-23-2014 08:42 AM #7
36 sedan, you shouldn't feel bad. The whole motor oil arena is such a tangle, and there are a lot of "experts" who disagree on what's right, and also what's forbidden, too. Mobil answers the question about synthetics for break in with a statement about having much closer tolerances on new engines today, much cleaner assembly, etc, etc and ending with rings don't need any special "seating", saying synthetics are fine. I've never really jumped on the full synthetic band wagon, and while I agree with their logic on starting with synthetic I also see no problem with using a high quality non-synthetic for initial break in, and then if you choose to, swapping over to the synthetic. What can it hurt? For me, I also see no problem with continuing forever with non-synthetic, or with a good synthetic blend. Of course, the flat tappet cam issue is there for either path, and must be addressed.Roger
Enjoy the little things in life, and you may look back one day and realize that they were really the BIG things.
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12-23-2014 10:04 AM #8
No disrespect intended, I wasn't meaning to sound like an expert (forgive my trespass). I was only going off the information provided by GM for their crate motors. They recommend not using synthetic oils for the breakin period, unless it is an LS or newer motor.
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12-23-2014 01:51 PM #9
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12-23-2014 02:29 PM #10
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12-23-2014 05:50 PM #11
I put Royal Purple in it.
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12-24-2014 05:55 AM #12
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12-24-2014 06:50 AM #13
Roger
Enjoy the little things in life, and you may look back one day and realize that they were really the BIG things.
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12-24-2014 10:45 AM #14
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12-25-2014 07:05 AM #15
Welcome to CHR. I think that you need to hook up your vacuum advance. At part throttle when cruising you have less air and fuel in each cylinder, and the air-fuel mixture is not as densely packed...
MSD 8360 distributor vacuum advance