mobil 1 oil

6 replies to this topic
  • Sandracer_uk

Posted January 11, 2001 - 05:51 AM


can i use mobil 1 motor oil in my yz400 and do i need the mobil 1 specified for bikes?
is there any differance with these oils?
apart from cost

  • Hick

Posted January 11, 2001 - 07:01 AM


They have sand in England? Oh right, it IS an island…

Just kidding.

Plenty of people, me included, run Mobil 1 synthetic car oil in our bikes (15-50w). A lot of car-spec motor oils have energy conserving (EC) “friction modifiers” that will cause clutch slippage in a bike. Apparently Mobil 1 15-50w does not.

Here is a link to an article on this subject The Great Oil Debate.

  • Sandracer_uk

Posted January 11, 2001 - 08:50 AM


is 15-50w oil ok to use?
and how is it different to 10-40w oil
this probably sounds a bit thick but having jumped off a 2 stroke, its all kinda new to me.
and are you guys actually using automotive mobil 1?

bare in mind , at present in the uk we are running at about zero degrees or below,,does this matter?
gosh its all so confusing, still wouldnt go back to a 2stroke tho ;-)

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  • Guest_Guest_*

Posted January 11, 2001 - 12:10 PM


I've been using Mobil 1 15W-50 in my 1996 CBR 900 since break in. It is the best oil I've ever ran in my bike. The 15W-50 is basically the same oil as the motorcycle oil. I work with this really anal Mechanical Engineer and everytime a new oil comes out he gets the data sheets. According to the data sheets the 15W-50 Mobil 1 is the best oil for 4-stroke bike applications.

All I know is it makes my clutch smooth and the bike run super slick. I really like it.

Roostn in Denver

  • Sandracer_uk

Posted January 12, 2001 - 06:04 AM


the only stuff i can find here is mobil 1 tri synthetic stuff which is 0w 50
is this the same stuff?

  • Guest_Guest_*

Posted January 12, 2001 - 01:53 PM



Do you know if that guy compared the data sheets against only other automotive oils or if he checked it against any oils that we usually find in bike shops too?


  • Guest_Guest_*

Posted January 13, 2001 - 01:59 PM


I have a 99400 and used yammylube for a while then one of my friends told me how wonderful mobil 1 was.
I tried it for about 2 or 3 months and probably 4 races of 80miles each and numerous long ride practice sessions. after about 2 races i noticed a wierd clutch "HOP" each and every time i started out on the bike -hot and cold-
both were exactly the same random clutch engagement and choppy. I was milkin it til i had $ for a new clutch cuz' i thought it was surely a goner.
I was talkin to my local dealer parts guy and he said to go back to Yammy and see what it did b4 he ordered the clutch.
I did and changed a little so i did about another 80miler and probly 20 miles practice..........changed the oil again and it was nearly gone but still there....... then i put in another 50-60 miles and changed it again...... I haven't had another prob w/clutch since then. Mobil one in my cars all the time but never again in my BABY....

ride BLUE

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