Premium Car oil vs premium MC oil in a scooter

[kfc.android]

I use mobil1 5000 (conventional oil) during first 600 miles (aka break-in), after that I switched to mobil1 racing 4T 10w40 for about 2500 miles
It revs pretty fast, but I felt lots of vibration while riding on interstates @ 80+mph
After that, I switched to Fuchs Silkolene Pro 10W40 because of the ester formula and superior noise/vibration reduction they claimed.
The vibration is greatly reduced, I replaced the engine oil around 2800 miles and it still feels great and smooth.
I have been using Shell Rotella T6 5w40 on my '98 MB C230 for 100K+ miles with only great result.
After reading some positive feedback about using T6 on MC, I will probably switch to T6 next oil change

[karimfadl]

a bright lovely morning

do u use fully synthetic oil from day one or use mineral oil during break in to make sure all parts have wore correctly then turn to fully synthetic after 3000k for example?

[mrmike]

Everybody has their own opinions. I have a GTI300 and live in Central (Syracuse) New York. So far I have changed my oil, filter, and differential oil at 122, 504, 1001, 2008, and 2949 miles. I use Mobil 1 full synthetic 10w-40 in the engine, and Mobil 1 75w-90 in the differential. I can't find the 10w-40 anymore in 5 quart jugs around here so next spring I'm changing over to a 15w-50 for the engine. Your manual shows a chart with engine oil viscosity vs temperature. You have several different options for your particular area. Get your oil based on the temperature range you ride in. Personally I prefer a full synthetic oil.  Here again, let your conscious be your guide. I buy my oil in 5 quart jugs from Wallmart and it's not that much more than conventional oil. I run full synthetic in everything I own from lawnmowers to my vehicles.

[mrmike]

a bright lovely morning

do u use fully synthetic oil from day one or use mineral oil during break in to make sure all parts have wore correctly then turn to fully synthetic after 3000k for example?

Different opinions on this one also. Personally I have a GTI300 and a 2014 Ford Escape. I changed over to full synthetic on both vehicles in the first 200 miles with no problem. They both run like a top. Either way will work, but I personally recommend getting the "break-in" oil out right away. My preference for all my equipment is full synthetic. Automobile oil will work fine. Do what feels right to you. It's your scooter and money.

[doxbike]

2 questions.  First, is the Rotella t6 full synthetic 5-40w(diesel oil)OK to use in the people gt300i?  I use this in my Goldwing 1500 and used it in my Piaggio mp3 500 per recommendations on the Piaggio forums. I use Castrol 4T 10-40 full syn motorcycle oil on my Triumph Tiger 800XC.

Or am I better using a automobile full synthetic as there is no wet clutch, like on my motorcycles

And what is the REAL recommended mileage for oil changes when full synthetic is used
TIA

[BettinANDlosing]

Diesel oil is the best choice for scooter engines, some will argue this fact with me. Diesel oil is meant to absorb more contamination than regular motor oil, scooter engines and single cylinder engines in general put more of a toll on oil than other engines. I hear most people on here say 5w50 is the choice for the 300i. Or you could do 15w40 summer and 10w40 winter. Just look in your owners manual and it'll have recommended oil for temp.

[NeoGenesisMax]

My 2 cents. Go with the viscosity it says to use. I know its a wild idea and all but Kymco build the SOB. The DT has the same motor as my GT so that calls for 5w-50 syn. Bet ya money you'll never have a problem with that in a good car oil. I disagree with using diesel oil. And going above 5w or 10w isn't smart. Read up on lab tests if you wish but if you go syn like Kymco says and get tue newest API rating you'll be golden. Oil has it's biggest viscosity drop in the first 600 miles or so. Going with a 40 when it suggests a 50 means you'll be that much further from the viscosity needed after several hundred miles. Two or three dollars more in oil wont break the bank. Im running Castrol Edge 5w 50. Next Im gonna run Motorcraft 5w 50.

[doxbike]

Well, I changed the oil and filter using the Rotella T6 5-40 synthetic diesel oil for the motor and Mobil 1 75-90 in the rear end.  FWIW, a lag I previously noticed at 25mph, 35mph, and 45 mph is gone.  This could just be the belt "settling in" but it was doing it before the change and it was gone immediately after the change, so who knows.