Join Date: Apr 2018
Location: Chicago Heights, Illinois
Motul with Ester is supposed to be the best oil, but you should not use the 300V unless you are racing with it. That is what I read, not sure if it's any better than any other good oil, but the race only oil makes sense.
I tried Walmart special full synthetic, been working okay. If you want a good but relatively inexpensive oil, Maxima Synthblend 50/50. You can get a gallon on Amazon for about $30.00. I can say it shifted smoother with the Maxima as opposed to the Walmart Full synthetic. In fact I plan on changing the oil ahead of schedule.
I will be trying Maxima's ProPlus+ full syntetic which has Ester as well. It is less than $40.00 for a gallon. I am willing to bet that is the oil I will be staying with. It meets or exceeds JASO MA, API SL/SJ/SH/SG and has anti-wear additives.
I use the K&N Filter as well, but if you want to save about 25% and still essentially get a K&N oil filter, get the HiFloFiltro HF138RC (EXACT same filter and design as the K&N KN-138 for my 2005 GSXR 600, without paying for the name). It is about $9.00 with Prime shipping on Amazon where as the K&N will cost about $12.00/shipped. Every dollar counts!
2005 K5 GSXR 600
-Fully restored and painted by myself
-Carbon fiber bar ends and levers
-Shinko Stealth 003 tires
-NGK Iridium Spark plugs
Last edited by Wraith_Rider; 06-09-2018 at 07:43 AM.