[E-Type] Need advice on V-12 engine oil

It’s time for an oil change. I’ve been running Castrol
synthetic 20-50 for a while, but put few miles on my car now
and looking to save a bit of money on this change. Any
recommendations for engine oil on a lightly driven SIII?–
mollyoliver
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If I ever get my '73 back from the “car guy” I’m going to use 10-40 diesel. Others will chime in.

Dave
'73 2+2-----Original Message-----
From: owner-e-type@jag-lovers.org [mailto:owner-e-type@jag-lovers.org] On Behalf Of mollyoliver
Sent: Saturday, March 30, 2013 3:24 PM
To: e-type@jag-lovers.org
Subject: [E-Type] Need advice on V-12 engine oil

It’s time for an oil change. I’ve been running Castrol synthetic 20-50 for a while, but put few miles on my car now and looking to save a bit of money on this change. Any recommendations for engine oil on a lightly driven SIII?

mollyoliver
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The most common grade for Diesel motor oil is 15w-40, not 10-40.
Diesel motor oil has lots of ZDDP, but has other properties, like
very high detergency, which may or may not be good for your car. I
just checked the Diesel side of the garage, and the dino Diesel oils
on the shelf (Rotella and Delo) aren’t rated for spark ignition
engines. That doesn’t mean they won’t work, but I’m not using them in
the gas engines.

If you’re concerned about ZDDP, order a case of Brad Penn, which is
the classic “Pennzoil” blend. They make a 20w-50 which should be just
the ticket. Another option, which I’m not especially thrilled to
suggest, is Amsoil. Their “secret” for infrequent changes is that
their oils have always had high levels of ZDDP. But you sure won’t
save any money with Amsoil.

Mike Frank

At 05:16 PM 3/30/2013, you wrote:>If I ever get my '73 back from the “car guy” I’m going to use 10-40

diesel. Others will chime in.


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David as a mechanical engineer and owning E-Types for many years, I have
done some research on the proper oil to use in our e-Types. This was based
on how oils have changed over the years to coincide with with more modern
technology in manufacturing of present day engines. our E-Type engines with
flat tappets and cams need to have the Zinc and Phosphorus elements for
long time and reliability. With that said, I especially like Valvoline
20W50 Racing oil. This oil has all the properties all the Zinc and
Phosphorus elements we need for long life engines. This oil is not the oil
normally found on dealers shelves It is labeled NOT STREET LEGAL since it
will mess up Catalytic Convertors., but since we have no Catalytic
convertors it doesn’t matter. The oil has a part number VV851 and is
available from NAPA parts distributors. I know there are other brands that
will provide the same protection, but I’m especially fond of this oil as
well as the price of $6.59 per quart.

Dick Russ
70 OTS--------------------------------------------------
From: “Braun, David G.” Dave.Braun@fhr.com
Sent: Saturday, March 30, 2013 4:16 PM
To: e-type@jag-lovers.org
Subject: RE: [E-Type] Need advice on V-12 engine oil

If I ever get my '73 back from the “car guy” I’m going to use 10-40
diesel. Others will chime in.

Dave
'73 2+2

-----Original Message-----
From: owner-e-type@jag-lovers.org [mailto:owner-e-type@jag-lovers.org] On
Behalf Of mollyoliver
Sent: Saturday, March 30, 2013 3:24 PM
To: e-type@jag-lovers.org
Subject: [E-Type] Need advice on V-12 engine oil

It’s time for an oil change. I’ve been running Castrol synthetic 20-50
for a while, but put few miles on my car now and looking to save a bit of
money on this change. Any recommendations for engine oil on a lightly
driven SIII?

mollyoliver
–Posted using Jag-lovers JagFORUM [forums.jag-lovers.org]–


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In reply to a message from mollyoliver sent Sat 30 Mar 2013:

As others have said, a great choice is a Shell Rotella which
you can buy in large drums if you wish to save money. Lots of
anti-wear additives whereas petrol engine oils conforming to
latest API stds are a bit lacking for our ancient machinery.–
Dave S3E,RR SS, BMW’02,Tr4a,Elise, http://www.xketype.com
Georgetown, Penang, Malaysia
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In reply to a message from mollyoliver sent Sat 30 Mar 2013:

Ni MO, I use ( based on input from a local employee of Mobil
Oil!! ) 15-40W Super Tech diesel engine oil from Walmart.
Its got all the additives we need for this old engine, and
it works for me.–
The original message included these comments:

It’s time for an oil change. I’ve been running Castrol
synthetic 20-50 for a while, but put few miles on my car now
and looking to save a bit of money on this change. Any
recommendations for engine oil on a lightly driven SIII?
mollyoliver


John M Holmes 1973 E Type SIII Supra 5Sp, 70 SII OTS 05XJ8L
Ontario, Canada
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In reply to a message from Michael Frank sent Sat 30 Mar 2013:

Hi Mike, Wondered what might be a disadvantage of diesel
engine oils with detergents?–
The original message included these comments:

The most common grade for Diesel motor oil is 15w-40, not 10-40.
Diesel motor oil has lots of ZDDP, but has other properties, like
very high detergency, which may or may not be good for your car. I
Mike Frank


John M Holmes 1973 E Type SIII Supra 5Sp, 70 SII OTS 05XJ8L
Ontario, Canada
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Okay, Okay. 15-40. Jeez…-----Original Message-----
From: owner-e-type@jag-lovers.org [mailto:owner-e-type@jag-lovers.org] On Behalf Of Michael Frank
Sent: Saturday, March 30, 2013 5:34 PM
To: e-type@jag-lovers.org
Subject: RE: [E-Type] Need advice on V-12 engine oil

The most common grade for Diesel motor oil is 15w-40, not 10-40.
Diesel motor oil has lots of ZDDP, but has other properties, like very high detergency, which may or may not be good for your car. I just checked the Diesel side of the garage, and the dino Diesel oils on the shelf (Rotella and Delo) aren’t rated for spark ignition engines. That doesn’t mean they won’t work, but I’m not using them in the gas engines.

If you’re concerned about ZDDP, order a case of Brad Penn, which is the classic “Pennzoil” blend. They make a 20w-50 which should be just the ticket. Another option, which I’m not especially thrilled to suggest, is Amsoil. Their “secret” for infrequent changes is that their oils have always had high levels of ZDDP. But you sure won’t save any money with Amsoil.

Mike Frank

At 05:16 PM 3/30/2013, you wrote:

If I ever get my '73 back from the “car guy” I’m going to use 10-40
diesel. Others will chime in.


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In reply to a message from Braun, David G. sent Sun 31 Mar 2013:

I used to use Pennzoil 20-50 racing oil, full of all the good stuff
but not street legal. As pointed out, that dosen’t matter to us
without cats. Because of a concern about how ‘‘detergent’’ a race oil
would be, due to it’s intended purpose of being replaced often, I
have replaced it with Mobil 1 15/50 synthetic. It has all the good
stuff and is detergent.
I think Mobil 1 even stated it was for older flat tappet cars.
It’s expensive at the local car store but in the US, Wal-Mart
carries it at most stores in 5 Qt. containers that get the price
down to @ $6.00 a Qt.
If you are interested, to avoid dissapointment, first go online and
check for stores in your area that carry it.–
The original message included these comments:

Diesel motor oil has lots of ZDDP, but has other properties, like very high detergency, which may or may not be good for your car. I just checked the Diesel side of the garage, and the dino Diesel oils on the shelf (Rotella and Delo) aren’t rated for spark ignition engines. That doesn’t mean they won’t work, but I’m not using them in the gas engines.
If you’re concerned about ZDDP, order a case of Brad Penn, which is the classic ‘‘Pennzoil’’ blend. They make a 20w-50 which should be just the ticket. Another option, which I’m not especially thrilled to suggest, is Amsoil. Their ‘‘secret’’ for infrequent changes is that their oils have always had high levels of ZDDP. But you sure won’t save any money with Amsoil.


Mark Mackay 1974 E Type OTS 5 speed
Park City, UT, United States
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In reply to a message from John M Holmes sent Sun 31 Mar 2013:

Hi John,

Your question raises an important point concerning the
health of older engines. These high detergent levels in
certain oils can kill-off the good bacteria living in the
sump which digest & coagulate ‘toxic’ combustion by-products
& allow them to be trapped in the oil filter.

With normal oils these bacteria, especially the e-coli 0401
type in the americas and the related 0104 in europe,
naturally colonise engine internals in the first few months
of use. Although invisible, they survive the high-
temperature conditions in a similar way to those found
around volcanos and other inhospitable locations.

Modern engine manufacture, with its scrupulous cleanliness,
has eliminated the seeding of these bacterial colonies, and
as a result they require finer filters to remove these by-
products [finer filters need more pressure and reduce
power].

For those who’ve used the high-detergent oils in older
engines and may have weakened their bacterial colonies, the
good news is that the system can be easily restored by
adding a tablespoon of old engine oil from a non-detergent
car from the same continent.

I’m sure it’s a surprise to many of you realising that
biotechnology is at-work in the sump of your beloved jaguar.–
The original message included these comments:

Hi Mike, Wondered what might be a disadvantage of diesel
engine oils with detergents?


Dave S3E,RR SS, BMW’02,Tr4a,Elise, http://www.xketype.com
Georgetown, Penang, Malaysia
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In reply to a message from David Lacey sent Mon 1 Apr 2013:

Nice one Dave (date…)–
Chris , 69 FHC , Ducati, Moto Guzzi , Aston DB7
Sydney, NSW, Australia
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