Mobil 1 fans
10-29-2009, 05:58 PM
#16
RL Community Team
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This is my logic: Oil is meant to lubricate. If you add anything to the oil that is not lubricant, you will hurt something. The oil stabilizer stuff looks like it just makes the oil mucous; if you want thicker oil just use thicker oil. Kragen has 60wt valvoline, you can mix it in to make your oil thicker.
BTW, on the Walmart sale:
My local walmart has the mobil 5qt jug for $22.00. You can get Castrol Syntec for $21.87 which looks like their regular price. I go with Castrol Syntec anyway so I was happy to see that, and I bought some. Thanks Miles, you saved me a few bucks!
BTW, on the Walmart sale:
My local walmart has the mobil 5qt jug for $22.00. You can get Castrol Syntec for $21.87 which looks like their regular price. I go with Castrol Syntec anyway so I was happy to see that, and I bought some. Thanks Miles, you saved me a few bucks!
10-30-2009, 04:16 PM
#18
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I was informed that our cars require a specific zinc additive (ZDDP?). You can buy it separately to add during an oil change, or you can use an oil that already contains this. IIRC that short list includes Royal Purple. There are probably additional brands but I can't remember any of them at this time. I've been using Royal Purple ever since with excellent results.
10-31-2009, 02:38 PM
#21
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I have not tried this yet, but the bottle says Wal-mart will also take and dispose of the used oil too! For me this is alway been a messy and troublesome step.
11-01-2009, 08:22 AM
#22
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Amsoil also has zinc. And IIRC mobil recently (last year or two) took the zinc out of their formula - I'm not 100% sure but I think so.
11-01-2009, 05:40 PM
#23
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Thread Starter
Found this informative and just wanted to share: http://www.aa1car.com/library/api_mo...ifications.htm
The lobes on this 289 Ford Mustang flat tappet cam suffered excessive wear because the motor oil did not contain adequate levels of ZDDP anti-scuff additive.
If you are driving an older classic muscle car or hot rod that has an engine with a flat tappet camshaft, you should be aware of the fact that today's "SM" rated motor oils contain much lower levels of anti-scuff additive called "ZDDP" (Zinc Dialkyl Dithio Phosphate). The level of ZDDP in current motor oils has been reduced to no more than 0.08% phosphorus to extend the life of the catalytic converter. Phosphorus can contaminate the catalyst over time if the engine uses oil, causing an increase in tailpipe emissions.
The lower ZDDP content is not harmful to late model engines with roller lifters or followers because the loads are much lower on the camshaft lobes. But on pushrod engines with flat tappet cams, the level of ZDDP may be inadequate to prevent cam lobe and lifter wear. In some cases, cam failures have occurred in as little as a few thousand miles of driving! This is even more of a risk in engines if stiffer valve springs and/or higher lift rocker arms are used.
To avoid such problems, you should add a ZDDP additive to the crankcase, or use an oil that meets the previous "SL" service rating, or use diesel motor oil or racing oil that contains adequate levels of ZDDP to protect the camshaft and lifters.
If you are installing a new camshaft in the engine, be sure to use the cam manufacturers assembly lube and follow the recommended break-in procedure. But you will still need to add ZDDP to the crankcase or use an oil that contains adequate levels of ZDDP for continued protection.
The lobes on this 289 Ford Mustang flat tappet cam suffered excessive wear because the motor oil did not contain adequate levels of ZDDP anti-scuff additive.
If you are driving an older classic muscle car or hot rod that has an engine with a flat tappet camshaft, you should be aware of the fact that today's "SM" rated motor oils contain much lower levels of anti-scuff additive called "ZDDP" (Zinc Dialkyl Dithio Phosphate). The level of ZDDP in current motor oils has been reduced to no more than 0.08% phosphorus to extend the life of the catalytic converter. Phosphorus can contaminate the catalyst over time if the engine uses oil, causing an increase in tailpipe emissions.
The lower ZDDP content is not harmful to late model engines with roller lifters or followers because the loads are much lower on the camshaft lobes. But on pushrod engines with flat tappet cams, the level of ZDDP may be inadequate to prevent cam lobe and lifter wear. In some cases, cam failures have occurred in as little as a few thousand miles of driving! This is even more of a risk in engines if stiffer valve springs and/or higher lift rocker arms are used.
To avoid such problems, you should add a ZDDP additive to the crankcase, or use an oil that meets the previous "SL" service rating, or use diesel motor oil or racing oil that contains adequate levels of ZDDP to protect the camshaft and lifters.
If you are installing a new camshaft in the engine, be sure to use the cam manufacturers assembly lube and follow the recommended break-in procedure. But you will still need to add ZDDP to the crankcase or use an oil that contains adequate levels of ZDDP for continued protection.
11-01-2009, 08:22 PM
#24
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Oil analysis is the only way to find out if a particular oil is protecting properly.
11-01-2009, 10:04 PM
#25
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There is soooo much info on this subject available. Suffice to say, don't use M1 or any
low viscosity oil in our motors. The fact that M1 has recently decided to re introduce
sufficient quantities of ZDDP back into some of their products speaks volumes.
There's a very good (long) oil thread on Pelican. Worth a read.
Also watch out for too high detergent quantity.
low viscosity oil in our motors. The fact that M1 has recently decided to re introduce
sufficient quantities of ZDDP back into some of their products speaks volumes.
There's a very good (long) oil thread on Pelican. Worth a read.
Also watch out for too high detergent quantity.
11-02-2009, 08:56 AM
#26
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Thread Starter
I think this is the Pelican link?:
http://www.pelicanparts.com/techarti...il_article.htm
I received this response from Mobil 1 today:
The Mobil1 15W50 contains 1200ppm of ZDDP, formulation information is considered proprietary and not available.
--
Thank you for choosing ExxonMobil products.
If you need further assistance, please contact ExxonMobil at 1-800-ASK-MOBIL -MJ
http://www.pelicanparts.com/techarti...il_article.htm
I received this response from Mobil 1 today:
The Mobil1 15W50 contains 1200ppm of ZDDP, formulation information is considered proprietary and not available.
--
Thank you for choosing ExxonMobil products.
If you need further assistance, please contact ExxonMobil at 1-800-ASK-MOBIL -MJ
Last edited by Miles968; 11-02-2009 at 12:49 PM.
11-02-2009, 01:12 PM
#28
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Thread Starter
I wish I could tell you for sure......
The label does indicate a "SL" service rating which in theory is adequate wear protection.....
I guess someone could call and ask?
If you need further assistance, please contact ExxonMobil at 1-800-ASK-MOBIL -MJ
The label does indicate a "SL" service rating which in theory is adequate wear protection.....
I guess someone could call and ask?
If you need further assistance, please contact ExxonMobil at 1-800-ASK-MOBIL -MJ
