can synthetic oil increase hp?
Posted July 07, 2002 - 02:34 PM
Posted July 07, 2002 - 03:22 PM
[ July 07, 2002: Message edited by: 02XR250rRider ]
Posted July 07, 2002 - 04:25 PM
Posted July 07, 2002 - 04:26 PM
Posted July 07, 2002 - 06:06 PM
Even if you got the same gain (2.5%), it would only amout to about 1 HP on an XR400.
But I would still recommend Mobil 1 for your bike, as it keeps the motor in excellent condition.
Posted July 07, 2002 - 08:47 PM
I know you can get by on Mobil 1 auto but I wouldn't push my luck. Use a good synthetic motorcycle oil or blend . Maxima is now making a 5w50 Synthetic that they say works great and seems to cool engine better too. I have been running Maxima 15w50 myself.
I just wonder why everyone insists on running Automotive oil instead of Motorcycle lube ? There is a difference. Honda's with RFVC engines will fail before other types due to high head temps. It will literally boil the oil in the head on a petroleum base oil , running hard in tight woods. Expecially Auto oil, that is if the clutch isn't already slipping.
Posted July 07, 2002 - 09:22 PM
I have spoken from experiance on the results of running something like Castrol GTX in your bike. I have seen too many poor XRs fried because of auto oils.
Of course I am probably beating a dead horse here and everyone is going to do what they want.
Posted July 07, 2002 - 10:59 PM
People seem to like the idea of Mobil 1. It is the only one that I am aware of that is created from ethylene gas rather than a liquid base stock.
Any gained hp for most of us is just a bonus along with getting superior lubrication. And honest,,,motorcycle engines are not all that unique that we cant benefit from the millions poured into research for the other industries. My experience stradles enough fences to convince me. Lately some really big advances have come from outside the industry, which really is not surprising or new.
Posted July 08, 2002 - 05:23 PM
Posted July 09, 2002 - 11:06 AM
Posted July 09, 2002 - 11:32 AM
[ July 09, 2002: Message edited by: mpcv2000 ]
Posted July 09, 2002 - 02:26 PM
For anyone interested, here is some good info on various oils.
[ July 09, 2002: Message edited by: get_real ]
Posted July 10, 2002 - 06:05 AM
Posted July 11, 2002 - 08:45 PM
I will ONLY use Motorcycle specific SYNTHETIC oils in my XRs. I don't know what crap you have been told but synthetics will hold up better in your XR. If you are refering to Automotive synthetic oils, I agree. There is only 1 brand I would use in a pinch. And they also make Motorcycle specific Synthetic oil.
I stand by my reputation and finishing record.
4 ISDEs on XRs. USING SYNTHETIC OILS.
Posted July 12, 2002 - 05:27 AM
Posted July 12, 2002 - 05:35 AM
Posted July 12, 2002 - 07:52 PM
Oil requirements have changed and the oils have changed.
Motorcycle oils are not repackaged Automotive oils.
Not anymore. Maybe back in 1972.
Ask a motorcycle engineer. Not a hard headed dealer that refuses to change because he had been using Castol GTX since 1970. I run into this Daily. I work in the Motorcycle Industry. I don't just recommend what I sell. I just make sure the customer understands his machines needs and picks the brand of his choice.
I have Heard OssaGP state that Diesel Oils could be used. I have heard similar info from one engine builder. I don't know for sure. I don't want to take a chance. I have seem many engine failures from running the wrong oils. From premature wear to overheating and Cam failure, to just can't seem to keep a clutch in the machine. "It keeps slipping."
This oil thing is getting old.
Run a Automotive oil in your XR and expect a failure now or later. How many posts have you seen guys looking for heads or complete engines ?
I don't care what you use. But Don't ask if you don't want to know.
Posted July 12, 2002 - 09:18 PM
I don't make many posts on this site but I do read it almost daily. You seem to have appeared on this site fairly recently. This site has always been people sharing "opinions". Most of us are just regular 9-5 type guys who love motorcycles and just like to share the things we've learned and hopefully learn some things from other people on this site. There seems to be a few pros on the site as well and they have always been very helpful sharing their "opinions".
You however, seem hell bent on showing us underlings "THE WAY IT IS". This site is for people sharing "opinions". It is not, "THE WORLD ACCORDING TO DWIGHT".
I'm not trying to start an argument here, but it would be nice if you could lighten up a little bit and not try to make people feel stupid for their opinions.
Renthal Bars (Carmicheal bend)
Summers Fork Brace
Baja Designs Dual Sport Kit
ICO Racing odo/speedo
Snorkle removed, Uni Filter, Re-jetted 160/58
96/97 end cap w/Vortip
Posted July 14, 2002 - 05:57 PM
Either Honda builds an amazing motorcycle or the oil DOESN'T make that much difference if it is changed regularly.
The beginning of my rebuild 96 xr250r by Madmike84
Kevin's XR400 FAQ by Kev_XR