Oil ratio on a 98 225 PM SS
- Thread starter Larry33kc
- Start date
Mark Savage
Member
Hey Larry, I run a 2000 225pm, since I removed the oil injection, I went to 50:1 Klotz, but I'm not 100% on the ratio, so I'm curios on the replys also, and I just started running the Klotz, before that it was all Merc. premium plus.
ALLISONMAN
Well-Known Member
50:1 KLOTZ since 1998 with my 225 promax and when i changed motors to the 280 in 2001 I still ran 50:1 even with the rpms of my 280!!!!!! Now a lesser oil i might would think about a little more oil but with klotz no way!!!
Speedman
Active Member
Mark, why the switch from Merc to Klotz?
fishnfireman
Well-Known Member
I believe 40-1 is what the books say to use in the 2.5's
If these guys are doing well with the klotz at 50-1 then I'd say go for it.
But I would also say... DON'T if you are using anything of less quality than Klotz !!
LAAllison
Active Member
Took the oil injection off 3 years ago and have used only Merc Prem Plus @ 40:1. Got lots of hours on this engine been trouble free and runs great.
Art
Roll Tide
Art
Roll Tide
RedAllison
Well-Known Member
My 99 225 SS has been "sans earl injection" for several years and I have been mixin 3oz per 100% Pennz ever since and knock on wood she aint mista beat. Better a lil to much than a lil "not enough"...
Don't know what that makes out too ratio wise, it's just easier to figger in mu haid!!!
RA
Don't know what that makes out too ratio wise, it's just easier to figger in mu haid!!!
RA
Red,
I think that ratio would be close to 45:1 .
I'm also running Penzoil 100% synthetic at the same ratio in my mod promax at 7000+ RPM. I've been running this oil in all my Mercurys for over 6 years with no problems. I buy this oil at WalMart for $20 per gallon --- a good deal at this price. Also, I remember Jay Smith posting on another board that the engines that run this oil seem to have less wear and are cleaner when he takes them down for a rebuild.
Jim
I think that ratio would be close to 45:1 .
I'm also running Penzoil 100% synthetic at the same ratio in my mod promax at 7000+ RPM. I've been running this oil in all my Mercurys for over 6 years with no problems. I buy this oil at WalMart for $20 per gallon --- a good deal at this price. Also, I remember Jay Smith posting on another board that the engines that run this oil seem to have less wear and are cleaner when he takes them down for a rebuild.
Jim
No !!!! It is not the same stuff.
It is sold in one gallon and one pint containers and is clearly marked 100% synthetic or full synthetic. Also, there could be some difference in price in different parts of the country ---- here it is $20/gal .
If you can not find it at Walmart you could try "Boat US" or "West Marine" but usually at a higher cost.
Jim
It is sold in one gallon and one pint containers and is clearly marked 100% synthetic or full synthetic. Also, there could be some difference in price in different parts of the country ---- here it is $20/gal .
If you can not find it at Walmart you could try "Boat US" or "West Marine" but usually at a higher cost.
Jim
msethsmile
Funny Guy
97 225pm 40:1 Golden Spectro synthetic
JR
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I use the Wal-mart Pennzoil synthetic blend and my powerhead life is very good [1000+ hours on my 1st one]. I am still running the stock oil injection system.
Be careful about running too much oil, since oil displaces fuel going through the injectors/jets and results in a leaner burn [higher a/f ratio]. We learned this racing motocross.
JR
Be careful about running too much oil, since oil displaces fuel going through the injectors/jets and results in a leaner burn [higher a/f ratio]. We learned this racing motocross.
JR