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BIGBADBLUE
08-04-2005, 04:01 PM
A couple weeks ago I saw a thread about engine oil recomendations and now can not find it. I have a '94 205, 285hp 5.7 indmar. I have always used 10W30 Mobil one but I thought that I saw a thread saying that 15W50 is what Indmar reccomends now.

How do I find an old thread like this? I am a TT rook!!!

Evan Jones
08-04-2005, 04:06 PM
I typed in 10w30 in the search window and found the thread

Footin
08-04-2005, 04:35 PM
I have a 94 PS205 with a 5.7 and I use Mobil 1 15W-50.
FWIW

(and I am a BUCKEYE FAN!!!!!!!!)

east tx skier
08-04-2005, 05:49 PM
BBB, Indmar is currently recommending 15W40.

Upper Michigan Prostar190
08-04-2005, 06:33 PM
so is this on the newer engines or all of them?

my 91 owner manual says to use ASE 30 for oil grade. so should I be using something different now??

:confused:

east tx skier
08-04-2005, 07:12 PM
You'll probably be fine. This was discussed so much a few years back that I called Indmar, told them which boat/engine/year I had and asked them to recommend something. They said 15W40.

BriEOD
08-04-2005, 07:20 PM
so is this on the newer engines or all of them?

my 91 owner manual says to use ASE 30 for oil grade. so should I be using something different now??

:confused:

Yeah Indmar now recommends the 91' use an Olive Oil (virgin). ;)

JEREMY79
08-05-2005, 08:56 AM
OK hate to steal a thread, but what oil is recommended in the older boats. I have no idea what is supposed to be put in mine, and have no manual.

BIGBADBLUE
08-05-2005, 09:49 AM
Thanks guys for the help ... duh ... I just found the search feature.

BTW - I can not find 15W40 Mobil One. I can only find 15W50 so that is what I bought and am switching from the 10W30

east tx skier
08-05-2005, 09:54 AM
The Mobile 1 thing was just some sort of a warranty agreement MC or Indmar had with Mobil 1 at the time. For whatever reason, Pennzoil is now what they're recommending. If you don't have your own reasons for wanting to use Mobil 1, you can get the Pennzoil 15W40 marine oil in the boat section (not the auto parts section) at most WalMarts.

Gofast
08-05-2005, 09:57 AM
OK, I have to ask cause I just don't know....

What is the difference between Marine Oil and Reg. Oil?

I do need to change the oil this week or next, plus find out where to buy 303 for the seats.

Thanks Rob

east tx skier
08-05-2005, 10:32 AM
The marine oil says "M-A-R-I-N-E" on the bottle. 8p

Check this thread (http://www.tmcowners.com/teamtalk/archive/index.php/t-2020.html) out. bkblaida talks about marine oil about half-way down.

He says, "The difference is a marine rated oil is formulated to tolerate water contamination. Amsoil and Mobil 1 have been tested and proven in marine use. (however not all Amsoil products are rated for marine use)."

Brn85ss
08-05-2005, 10:46 AM
Mobil 1 now makes a 5w-40 severe duty.

Bert
08-05-2005, 10:56 AM
so is this on the newer engines or all of them?

my 91 owner manual says to use ASE 30 for oil grade. so should I be using something different now??

:confused:
I have been using Mobil 1 15W 50 since engine break in in 91.

Gofast
08-05-2005, 11:54 AM
East TX. Good thread. Thanks.

Still confused on the water contamination though. I'm probably missing somehting simple, but the oiling system is closed. The only way I should get water contamination is with a blown head gasket or maybe down the dipstick.

Regardless, will most likely switch to AMSOIL with a remote filter. I hate trying to get the old filter out, tend to get messy on my Maristar 225.

Thanks Rob

east tx skier
08-05-2005, 12:06 PM
I think it's the possibility of water in there that's the concern. Perhaps more likely than a car to get it in there. Just guessing.

TCrate
08-05-2005, 12:25 PM
Generally speaking, there is quite a bit of moisture and condensation in this environment. Thus the potential for this to get in the oil. This is why you should change your oil in the fall to get any of that moisture out of the oil pan.

BIGBADBLUE
08-05-2005, 12:55 PM
Thanks. I am going to stick with Mobile One as that is what I also use in my truck ... just like the little extra protection fully syth gives me. Even though I change my oil so often that it probably makes no difference at all.

Remote oil filter? Anyone else do this? Mine is a pain to get out and messy but not too bad.

gene dobies
08-07-2005, 01:22 PM
My Dealer did a first time oil change at the house for me and used 25w40 MerCruiser oil. That is what he recomends. Lq9 engine,, 2005 PS!190

PendO
08-08-2005, 01:37 AM
The Mobile 1 thing was just some sort of a warranty agreement MC or Indmar had with Mobil 1 at the time. For whatever reason, Pennzoil is now what they're recommending. If you don't have your own reasons for wanting to use Mobil 1, you can get the Pennzoil 15W40 marine oil in the boat section (not the auto parts section) at most WalMarts.


Ya' think the "agreement" was something like ... "Hey, we will reccomend your oil brand if you give us free/discounted oil for all of our new boats we test/send out."

As a sidenote a friend of mine told me that he once had a flowchart of how all the oil "brands" were related, and that there were really only like 3-4 real "brands" and that the rest was just private labeling ... same as the fact that only 2 companies make microwaves, and the rest is private labeling ... anyone know how the oil company flowchart works, OT it would be interesting.

Casey