donaho1(at)verizon.net
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 Posted: Thu Sep 01, 2011 6:54 am Post subject: RotaxEngines-List Digest: 2 Msgs - 08/31/11 |
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Hi All, FYI, On Sept 7th. The EAA is having a webinar titled "All
about oils". I just thought you may be interested. I have "attended"
several of their webinars and have learned something each time. Lanny
N598LF At 10:04 AM 9/1/2011, you wrote:
| Quote: |
Roger,
I will change back to one of the oils you recommend, and have used the
motorcycle oils for all but the last 10 or so hours. In fact I believe
I can hear the difference when starting the engine in the valve
lifters. But I wonder why the Mobil 7500 Clean semi synthetic is on
Rotax's list if it does not have the correct additives to protect
gears and flat lifters?
I was using MX4T synthetic, but on a couple of cross country trips I
could only get 100LL, and when I changed the oil shortly after, I
could really see the gunk building up in the oil tank. So I wanted to
go to a semi-synthetic for that occasional time when 100LL is
unavoidable. Thanks,
Jack
>
> I've been using Mobil 1 7500 Clean. It is readily available and on
> the Rotax list of approved oils, and has the SL rating. I assume
> therefore that it has the right additive package. Perhaps a rash
> assumption!!! Any comment? Anyone else using this in a 912 UL? I
> use it in my aging Toyota Rav4 as well, and it still gets good fuel
> economy at 170000 miles. Nice to have the same oil for both.
>
> --
> Jack Kuehn
>
>
> ________________________________ Message
2 _____________________________________
>
>
> Time: 11:38:18 AM PST US
> Subject: Re: 912 oil
> From: "Roger Lee" <ssadiver1(at)yahoo.com>
>
>
> Hi Jack,
>
> That Mobile 7500 Clean is a car oil and a last ditch
recommendation if no other
> is available. You have zero protection for your flat tappet
lifter and gearbox.
> There are no additives in this oil to help your engine. It is not
a motorcycle
> oil. Get rid of it and use one of these.
> You have to use a semi synthetic for 100LL and you can use a full
or semi synthetic
> for 91 Oct unleaded.
> These are all motorcycle oils.
>
> Amsoil 10-40 or 20-50
> Mobile 1 Racing 4T 10-40
> Mobile 1 V-Twin
> Aero Shell Sport Plus 4 semi 10-40
> Golden Spectro 4 semi 10-40 or 20-50
>
> --------
> Roger Lee
> Tucson, Az.
> Light Sport Repairman - Maintenance Rated
> Rotax Repair Center - Heavy Maint. Rated
> Home 520-574-1080 TRY HOME FIRST
> Cell 520-349-7056
>
>
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