[MSCW list] MSCW Digest, Vol 88, Issue 7

[Richard Pope]

I have been running a full synthetic since the early 1980s. For all
practical purposes engine wear ceases when you use a synthetic. If you take
a engine that has had cheap oil and poor oil changes you will have
troubles. Oil leaks and burning oil.
I ran Castrol GTX in my 323 until I reached 30k miles. I then switched to
Syntech and never looked back. I went to 7.5k mile oil changes instead of
3k oil changes. At 323k miles it ran great and didn't use a drop of oil
between changes.
At 200k miles I burnt the exhaust valves due to a coolant leak. When I
opened the engine up there was no varnish, no wear on the cam, lifters,
rockers, or cylinder walls. The pistons were clean.
I ran Syntech in my Protégé. I traded it at 147k miles. Ran great and
didn't use a drop of oil in it. I now have an Accord. I am having a lot of
trouble finding 5-50 Edge so I am using Amsoil. 7.5k mile oil changes.
42mpg at 55 and it doesn't use a drop of oil.
I just bought a RX-8. After I reassemble the engine I am going to run
Amsoil 5-50 in it with Amsoil 2 stroke being supplied to the metering pump
for the Apex and Corner seals.
I am a retired Master Automobile Technician and a Rotary Engine Technician.
If your engine isn't leaking, doesn't burn oil, has had a good quality oil,
frequent oil changes, and has less than 100k miles on it switching to a
synthetic will be fine.
All new vehicles use synthetic oil in them.
Thanks, rich!

On Sun, Oct 8, 2023, 5:05 AM <mscw-request at lists.mscw1.com> wrote:

> Mazda Sports Cars of Washington (MSCW) DC, Social Group List Serve --
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> Today's Topics:
>
>    1. Oil for N/A's (Benita Jenkins)
>    2. Re: Oil for N/A's (davidnugent at aol.com)
>
>
> ----------------------------------------------------------------------
>
> Message: 1
> Date: Sat, 7 Oct 2023 12:41:58 +0000 (UTC)
> From: Benita Jenkins <jenkinsbenita at yahoo.com>
> To: "mscw at lists.mscw1.com" <mscw at lists.mscw1.com>
> Subject: [MSCW list] Oil for N/A's
> Message-ID: <1778367407.6629181.1696682518994 at mail.yahoo.com>
> Content-Type: text/plain; charset=UTF-8
>
> I just read that synthetic oil??may not be compatible with some older
> engines! Synthetic motor oil may cause leaks or damage to the seals and
> gaskets of some older engines that were not designed for it. This is
> because synthetic oil has different properties and additives than
> conventional oil, which may not suit the specifications of some engines.? I
> am curious if any MSCW members have any experience/opinions on this?
>
> ------------------------------
>
> Message: 2
> Date: Sat, 7 Oct 2023 10:56:07 -0400
> From: <davidnugent at aol.com>
> To: <MSCW at lists.mscw1.com>
> Subject: Re: [MSCW list] Oil for N/A's
> Message-ID: <040c01d9f92e$67333000$35999000$@aol.com>
> Content-Type: text/plain;       charset="UTF-8"
>
> Benita -- Mobil 1 sells a High Mileage synthetic oil that is formulated
> for vehicles with more than 75,000 miles.  This synthetic oil contains the
> additives that prevents leaks and is compatible with the seals in older
> vehicles.  You may want to consider this option for the added benefits of
> synthetic oil.  Here is a link to Mobil 1's site that describes their
> oils:
> https://www.mobil.com/en/lubricants/about-us/mobil-1/high-mileage-motor-oil
>
> I use Mobil 1 and have observed less wear and greater cleanliness on my
> engine parts.  However, I have experienced oil leaks but in my opinion the
> advantages provided by synthetic engine oil protection far exceeds the
> tradeoffs.
>
> Dave
>
> -----Original Message-----
> Cc: Benita Jenkins <jenkinsbenita at yahoo.com>
> Subject: [MSCW list] Oil for N/A's
>
> >> I just read that synthetic oil  may not be compatible with some older
> engines! Synthetic motor oil may cause leaks or damage to the seals and
> gaskets of some older engines that were not designed for it. This is
> because synthetic oil has different properties and additives than
> conventional oil, which may not suit the specifications of some engines.  I
> am curious if any MSCW members have any experience/opinions on this?
>
>
>
> End of MSCW Digest, Vol 88, Issue 7
> ***********************************
>