Whats your choice? Fuel, Oil & Ratio

[Power Stand]

BelRay 40:1, 100% synthetic oils, raced desert on MC1+ back in the 80ies at 50:1, jet right no problems. Oil lubricates, fuel keeps engines cool, oil burns at a higher temp. More fuel, right jetting with good lubricant = good engine/ preformance.
BP ultimate 98

Blend oils are shite,,,,,,,,,,,,

If you have no lumpy carbon build up, its a good oil.

[monaro308]

BP ultimate 98
Shell M or its latest name (ran it in karting for 13 yrs ,rotary valve and piston port engines@15:1 doing 17,500-18,000 rpm
20:1 always have in bikes

[Power Stand]

http://ozvmx.com/community/index.php?topic=8661.0

http://ozvmx.com/community/index.php?topic=8662.0

http://ozvmx.com/community/index.php?topic=2533.0

18 or 20 to 1

Well after reading that I should up the cc of oil, being a product of the 80ies and following oil manufacture recommendations and not having any problems (while using BelRay) in 10 years of racing, you are only as good as the next punter.

Only a fool lives in denial so up the CC I will. OK let me rephrase that, ignorance doesn’t mean you are stupid, it means you are not aware. Stupid is knowing but not doing something about it.   

[jimg1au]

1973 cr250m
methenol
20:1 shell M
50ml of assertone
never fouls plugs and can out gate yz400s and rm370s
1972 cr400
caltex 98
tts 20:1
dosent foul plugs
tt500
methenol streight

[oldfart]

Caltex   Vortex 98        as I find Shell fouls my plugs.
Motul  800
Castrol  R 30            both mixed at 20-1           


David # 46  it is a percentage factor ie     20-1 =    20 litres of fuel / 1litre of oil     or 30 litres of fuel / 1 litre of oil
                                                                      10                    .5                               
                                                                       5                     .25                           

[LWC82PE]

Well after reading that I should up the cc of oil, being a product of the 80ies and following oil manufacture recommendations and not having any problems (while using BelRay) in 10 years of racing, you are only as good as the next punter.

Only a fool lives in denial so up the CC I will. OK let me rephrase that, ignorance doesn’t mean you are stupid, it means you are not aware. Stupid is knowing but not doing something about it.   

Welcome to the 20 to 1 club! your bikes will love you for it.

[SAABCOMBI]

Thanks fellows you are a great help, l am starting my new toy today, and l will see you on the starting line  this year, queens birthday weekend at cambelltown Victoria. Thanks again.

[KB171]

Air cooled 74 CR 250/125,79CR250
Catex Vortex
Castrol TTS 25-1
VB 4.6%
The only plugs i seem to go through are the ones i have to give to these Yamaha blokes
 that keep pushing their back to the pits 

[Hoony]

CR250 (Water cooled)

Mobil ULP
Motorex Cross power 2T
Ratio 40:1
======================
CR500 (Water cooled)

Mobil ULP
Motorex Cross power 2T
Ratio 50:1
======================
KTM300 EXC (Water cooled)

Mobil ULP
Motorex Cross power 2T
Ratio 50:1  (Recommended by KTM)

Depends on Bike, if i had an air cooled bike (or 125cc) i would be running 30:1 maybe even 25:1.

2 weeks ago i pulled the top end of the 500 and it was in very good condition, just put a new set of rings in. no carbon build up and piston wear was non existant. its done probably about 4 meetings and 6 ride days since new.

Like BilletYZ i ran Castrol TTS @ 40:1 for 20 + years until 2005 (when i got the KTM) and changed then, i found the CR250 & 500 ran a lot cleaner and responded better on the motorrex.

at the end of the day, run what works best for you and your bike, its a piece of mind thing also.

[bazza]

BP98 / av gas @50/50  Motul 800 40.1   Bore and piston allways sweet and easy start and running

[TeeBone]

BP 98 

Bel-Ray MC1

50-1 - runs sweet and looks fine inside!

[tony27]

My sherco

BP ultimate
Motorex crosspower 2t
Ratio 80:1 even I'm not game to try the 100:1 some guys do

[floberts]

1982 PE175z
98 RON any brand
Castrol TTS @ 25:1

The manual says 20:1 but I think with modern oils I can lean it out a touch.

[mainline]

BP 98
Castrol TTS at 25:1   
                              Don`t go throwing rocks at me for using the TTS but i swear by this stuff, i have used this oil in all my bikes since the early 80`s and every engine has been like brand new when i pull them down for a freshen up. Never had a bike destroy itself on this oil.   Peter.

I seem to remember TTS being the oil to use in the 80's, it came in a Works metal can while the Super TT (cheaper version) came in a plastic bottle.

I was in Super Cheap today and they had 1l of TTS for $27 and 4l for about $80? I think. Seemed like good buying but I wasn't sure if anyone was still using the stuff.

[dkupf]

I have use the old TTS  and BP ultimate at 30 to 1 Darcy