Switching from Mobil1 to Brad Penn
03-10-2008, 05:16 PM
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Switching from Mobil1 to Brad Penn
Greetings All,
I am switching from Mobil1 to Brad Penn 20w50 racing oil in my '80 SC due to the ZDDP makeup of the Brad Penn.
My question is this: How often should I change the Brad Penn oil? The Mobil1 was 15,000 miles, which for me was just once a year as the 911 only gets driven about 5,000 to 7,000 miles per year.
Thanks in advance!
Sebastian Gaeta
'80 SC
'65 C coupe
'64 C cab
I am switching from Mobil1 to Brad Penn 20w50 racing oil in my '80 SC due to the ZDDP makeup of the Brad Penn.
My question is this: How often should I change the Brad Penn oil? The Mobil1 was 15,000 miles, which for me was just once a year as the 911 only gets driven about 5,000 to 7,000 miles per year.
Thanks in advance!
Sebastian Gaeta
'80 SC
'65 C coupe
'64 C cab
03-10-2008, 06:36 PM
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Once a year is perfect given your mileage.
03-10-2008, 07:12 PM
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Don't forget about condensation. In my experience, having a vehicle sit for long periods in between driving can create water build up in the oil so you might want to check for this periodically and change the oil if water is detected. My humble opinion.....
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03-10-2008, 08:34 PM
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=OR= Go to Brad Penn's website and type in your info. They will get back to you with a local distributor.
Sebastian
03-10-2008, 11:12 PM
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or send 'em a direct inquiry using this form...
http://www.amref.com/online_forms/bp_form.htm
I'm getting mine via a flat-track racer in a nearby town (well, 50 mi away, it's a pain but I buy enough for 6-12 months) who supplies his own subculture of consumers. I'm pleased so far, am putting my whole fleet on it. Navarro blends 2 weights of BP to achieve a 10W-40, which is what I would do if I started mine much in winter conditions below 20 F.
http://www.amref.com/online_forms/bp_form.htm
I'm getting mine via a flat-track racer in a nearby town (well, 50 mi away, it's a pain but I buy enough for 6-12 months) who supplies his own subculture of consumers. I'm pleased so far, am putting my whole fleet on it. Navarro blends 2 weights of BP to achieve a 10W-40, which is what I would do if I started mine much in winter conditions below 20 F.
03-10-2008, 11:40 PM
#12
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And Navarro was the primary source for the write-up in January's Excellence issue about air-cooled motor oils. So that, combined with Steve W's opinion, make this choice as good as gold, IMO.
03-15-2008, 02:16 PM
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03-16-2008, 06:49 AM
#15
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Yes you may!!!!!!!!
In short, a TBN (total base number) measures the amount of active additive left in a sample of oil. The TBN is useful for people who want to extend their oil usage beyond the normal range. I keep mine well above 50% because I'm overly picky.
By comparing the TBN of a used oil to the TBN of the same oil in virgin condition, the user can determine how much reserve additive the oil has left to neutralize acids. The lower the TBN reading, the less active additive the oil has left.
(Note: You need to test a sample of virgin oil if you want to know exactly where the TBN of your specific oil starts out or you won't have a starting reference.)
As you know, an oil's function is to lubricate, clean, and cool the engine. Additives are added to the oil to enhance those functions. If the oil becomes too acidic, it will corrode the engine. A good TBN result, meaning plenty of active additive is left in the oil, is usually in the 6.0 to 14.0 range GENERALLY SPEAKING (depending on whether the oil is for gas or diesel engines). A low test result, meaning very little additive is left, is down around 2.
Scientifically speaking, the TBN is one of two "neutralization number" tests run on oils. The TAN (total acid number), which is used for hydraulic oils, is the other. The TBN measures the total basedity of an engine oil; that is, how much base (as in, a base vs. an acid) additive is in the oil to offset the deleterious effects of acids coming into the oil from combustion and other sources.
/................(quoted from another source)
I'm sure Charles can "add to" or correct this information, as he's forgotten more on oil than I know. Same for the mighty "Lubemaster".......
A search should bring up much more information on the TBN parameter, as it's been discussed before by our gracious, oil-knowledgeable, Rennlist members.
My best,
In short, a TBN (total base number) measures the amount of active additive left in a sample of oil. The TBN is useful for people who want to extend their oil usage beyond the normal range. I keep mine well above 50% because I'm overly picky.
By comparing the TBN of a used oil to the TBN of the same oil in virgin condition, the user can determine how much reserve additive the oil has left to neutralize acids. The lower the TBN reading, the less active additive the oil has left.
(Note: You need to test a sample of virgin oil if you want to know exactly where the TBN of your specific oil starts out or you won't have a starting reference.)
As you know, an oil's function is to lubricate, clean, and cool the engine. Additives are added to the oil to enhance those functions. If the oil becomes too acidic, it will corrode the engine. A good TBN result, meaning plenty of active additive is left in the oil, is usually in the 6.0 to 14.0 range GENERALLY SPEAKING (depending on whether the oil is for gas or diesel engines). A low test result, meaning very little additive is left, is down around 2.
Scientifically speaking, the TBN is one of two "neutralization number" tests run on oils. The TAN (total acid number), which is used for hydraulic oils, is the other. The TBN measures the total basedity of an engine oil; that is, how much base (as in, a base vs. an acid) additive is in the oil to offset the deleterious effects of acids coming into the oil from combustion and other sources.
/................(quoted from another source)
I'm sure Charles can "add to" or correct this information, as he's forgotten more on oil than I know. Same for the mighty "Lubemaster".......
A search should bring up much more information on the TBN parameter, as it's been discussed before by our gracious, oil-knowledgeable, Rennlist members.
My best,