CR 250 MXer

Member
Jan 30, 2002
74
0
What is the best pre-mix oil for my CR 250? I have been running Honda brand synthetic racing oil. Is there a better option from an aftermarket company? Ams Oil, Bell Ray, Torco ... etc. I'm looking for the best lubrication for longet engine life. Thanks.
 

MXP1MP

Member
Nov 14, 2000
1,845
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hey thats a good oil don't knock it, its just as good as anything else. I personally use Klotz super techniplate its 80% synthic 20% castor oil. I like it cause it smells good :) I'm suprized at how clean it burns with having that castor blend in it.
 

KDX220rm

Uhhh...
Jun 3, 2002
781
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I agree with SeniorKX,

I used Yamalube 2R for 4 years and switched to a full synthetic Mobil-1 MX2T and its more reasonable in price too.
 

CR 250 MXer

Member
Jan 30, 2002
74
0
Does anyone have any opinions about Ams Oil? How is the price also?
How does the price of Mobil-1 sinthetic compare to the Honda brand oil? And is it just as good or better?
 

TOTALL

Member
Feb 21, 2002
143
0
I'VE BEEN RUNNING AMSOIL SERIES 2000 RACING OIL FOR TWO YEARS NO PROBLEMS ALMOST NO CARBON BUILT UP ON POWER VALVE.MIXED AT 50/1. I PAY 27.00 A GALLON
 

Jaybird

Apprentice Goon
LIFETIME SPONSOR
Mar 16, 2001
6,449
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Charlestown, IN
I haven't found any (quality) 2-stroke oil that can compare in price with Mobil MX2T. ($3.50 a pop at AutoZone)

After a year of riding with MX2T, my power valves were a bit oily (a good thing in my book) and not gummed up at all. Also, I got approx. 50 hours (more hours than I imagined) of good riding in before I got compression readings that would warrant a top end change. My jug and piston were still way within spec and the only thing I saw on my piston was a slight bit of blow-by on the exhaust side. I'm sticking with MX2t.
(26.5:1)
 

DKT735

Sponsoring Member
Mar 16, 2000
118
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Long life on a top end.

For my money the path to getting the most out life out of your engine has nothing to do with oil. Keep your air filter clean and do the best you can to keep dirt out of your motor. Change your air filter before it gets filthy. Check the seal after you install a clean filter. Make sure your bike doesn't have any air leaks (keep your carb clamps tight.) Learn how to jet your bike. Try not to run any water through your bike. Be smart if you start drilling holes in the airbox to get more air in the airbox. I've seen more than one bike with large holes in the air box covered with screen run through a water hole and drown out the bike. When this happens, the water not only washes the oil off the piston and cylinder but also brings a ton of dirt with it.

Just my two cents.
 

sharp7277

Member
Mar 12, 2002
114
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DKT735 is right though, keeping dirt out of your motor is the key to long life. A good clean and sealed air filter is the way to long motor life
 

Jaybird

Apprentice Goon
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Mar 16, 2001
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Charlestown, IN
Don't kid yourself, proper oil mixture plays an important role as well. Even with a pristine clean filter, one can screw up a cylinder and piston in no time without proper lubrication.
 

DKT735

Sponsoring Member
Mar 16, 2000
118
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I'm not saying lubrication is not important. The oils sold by the major manufacturers will all more than likely do the job of lubrication.

Ask mechanics what ruins motors the most and my guess is that dirt in the motor and failing to follow maintenance schedules are the major reasons.

Lubrication related failures happen but probably happen when an engine or oil is pushed near the edge of its working envelope.

Lets hear some feedback from the working mechanics. Based on your experience, what causes the most engine failures?
 

RomKX5

Member
Feb 4, 2002
38
0
I'm not a certified mech, but both top end lubrication and keeping dirt out of the carb are very important. People will recommend everything out there, so I recommend you try some of the oils out there and see which you and your bike likes best. I have used Kawasaki oil, Motul 800, and Mobil 1 MX2T. They all seemed to work fine but I stuck with MX2T cuz of exactly what senior KX rider and Jaybird say, the cost $3.50 at the Autozone (they're everywhere) compared to $4.99 for everything else only available at the cycle shops (nearest shop is about 10 miles away) plus it's fully synthetic. I also liked Motul 800 but can't afford it :) Good luck with the oil you choose and keep that air filter clean and properly sealed.
 

77irish77

Member
Nov 22, 2001
15
0
i would stay away from maxima k2 (any maxima product in m opinion).. but i have used redline which i liked quite a bit and have recently been using motorex which in my opinion is probably some of the best oil you can get in the US besides motul products which aare quite good as well
 

bwalker

LIFETIME SPONSOR
Jan 10, 2000
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i would stay away from maxima k2 (any maxima product in m opinion).. but i have used redline which i liked quite a bit and
Thats funny. I have heard quit a few good comments about Maxima products and have had negative personel expiereance with redline two stroke oil so i would have to disagree with you. Redline has substandard corrosion protection and corrodes almost anything it comes in contact with, but burns very clean in a high strung motor. It does spooge a bit in less stressful applications though.
 

MX-727

LIFETIME SPONSOR
Aug 4, 2000
1,810
13
I've had good luck with Maxima K2 in my bike, but the wife doesn't seem to run her bike very hard, which leads to a bit of spooge. The bike is jetted just about perfect and when I ride her 125, I don't have that problem. Yamalube 2R worked better for her, and I'm in the process of switching to MX2T for all the bikes.
 

spl170_btc

Member
May 21, 2000
34
0
I think a lot of this depends on what kind of fuel you are using. Normal pump gas vs. race fuel. Also I was told that different types and brands of mix will require you to change your jetting a little bit.
 
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