jayc Posted July 21, 2015 Share Posted July 21, 2015 HI so after tossing and turning about weather or not to get a 1/5th petrol I've finally bought one. But now I have the seemly endless choice of oil. But which is best I have decided to run 25-1 for now at least. But which is best and what's the difference lol. I know not to go near the cheap crap. But there's still loads of apparently good 2T oil. To play it safe I have gone with some castrol 2stroke racing motorbike oil as this was the only branded stuff I could get at short notice. Thanks in advance Jay Quote Link to comment Share on other sites More sharing options...
Scoobie007 Posted July 21, 2015 Share Posted July 21, 2015 ive used castrol power 1 racing in a few of my engines, still use it now, cheap and available off the shelf in most 'car shops', never had a problem, castrol a747 and putoline mx5 is another popular choice, dont mix oils, and 25:1 is the generally accepted oil to fuel ratio this is a good place to look: http://www.msuk-forum.co.uk/topic/17229-fuel-and-oil-ratio-guide/ 1 Quote Link to comment Share on other sites More sharing options...
carnageUK Posted July 22, 2015 Share Posted July 22, 2015 I use rock oil synthesis 2 only cos I have a G320 pro mx performance engine and is what's recommended by Scott Finley , its dear 1 Quote Link to comment Share on other sites More sharing options...
jayc Posted July 22, 2015 Author Share Posted July 22, 2015 That's what I thought keep away from the cheap crap I could of got a bottle of cheap oil for Quote Link to comment Share on other sites More sharing options...
super sharp shooter Posted July 22, 2015 Share Posted July 22, 2015 As said before puntoline Quote Link to comment Share on other sites More sharing options...
coolas4k Posted July 22, 2015 Share Posted July 22, 2015 (edited) I've used Putoline mx5 in my Baja 5bss from new and it's done around 10 tanks now and runs smooth as silk. Regardless of which oil you end up choosing, make sure when you tune your engine, not to run it too lean especially on the high speed needle as none of the oils would stop the piston from seizing in that situation Edited July 22, 2015 by coolas4k Quote Link to comment Share on other sites More sharing options...
bigoggy Posted July 24, 2015 Share Posted July 24, 2015 I am another that uses Putoline mx5. Quote Link to comment Share on other sites More sharing options...
jayc Posted July 25, 2015 Author Share Posted July 25, 2015 Thanks guys just put the truck in to the my local shop to get the carb rebuilt going to stick with the Castrol untill its gone then going to look at the putoline seems a good choice. Quote Link to comment Share on other sites More sharing options...
Karlos fandango Posted August 21, 2015 Share Posted August 21, 2015 Tune the engine...... Lol...... Theres only a quarter if a turn you have to play with!!..... Never tuned me petrol strimmer or chainsaw and they run fine!! ???? Quote Link to comment Share on other sites More sharing options...
Karlos fandango Posted August 21, 2015 Share Posted August 21, 2015 Seriously tho!! I use castrol synthetic. ???? Quote Link to comment Share on other sites More sharing options...
jordanp Posted August 23, 2015 Share Posted August 23, 2015 mobil 2t racing oil cant remember exact name from memory but it runs great at 25/1 Quote Link to comment Share on other sites More sharing options...
Titaniumrc Posted August 24, 2015 Share Posted August 24, 2015 I've used only 2 types of oils MX5 and motul 800, when rebuilds are due I now go off time the engines been run. I've run my engines for up to 30 hrs with no leaking oil seals and bearing that are perfectly fine, and most important a ring that only half worn this was on MX5 oil half worn ring 0.24 so just a tad under half worn. I switched oils to ML800 when I replaced the head and fresh rebuild I upgraded to a 30.5 from 29.5 and was shocked at the condition of my ring and bearings, although the seals was fine I only use Vitron seals. On this ML800 my ring was almost worn out .43 if I recall and my team fast Eddie ceramics was shot IE no good, all in a shocking time of just 19 hrs and based off my own personal info I no the MX5 will do many more than 40hrs before a ring is due a change, estimated at 60 hrs VS ML800 at 19hrs. Sent from my iPhone using Tapatalk 1 Quote Link to comment Share on other sites More sharing options...
andyknight Posted August 24, 2015 Share Posted August 24, 2015 I think it's about time I invested in a tto as I have no idea how many hours my engine has had lol. Quote Link to comment Share on other sites More sharing options...
chakram thrower Posted August 24, 2015 Share Posted August 24, 2015 (edited) Cheap isn't always crap' except the (Comma) brand oil. Exol Optima FST is a good cheap synth oil' Edited August 24, 2015 by chakram thrower Quote Link to comment Share on other sites More sharing options...
chakram thrower Posted August 24, 2015 Share Posted August 24, 2015 Motul link isn't clickable in other post so i'll post it here http://www.ebay.co.uk/itm/1x-4L-LITRE-MOTUL-710-2-STROKE-OIL-MOTORBIKE-MOPED-MOTO-CROSS-QUAD-ROAD-RACE-/361284157929?hash=item541e36c1e9 Quote Link to comment Share on other sites More sharing options...
jayc Posted August 30, 2015 Author Share Posted August 30, 2015 I've used only 2 types of oils MX5 and motul 800, when rebuilds are due I now go off time the engines been run. I've run my engines for up to 30 hrs with no leaking oil seals and bearing that are perfectly fine, and most important a ring that only half worn this was on MX5 oil half worn ring 0.24 so just a tad under half worn. I switched oils to ML800 when I replaced the head and fresh rebuild I upgraded to a 30.5 from 29.5 and was shocked at the condition of my ring and bearings, although the seals was fine I only use Vitron seals. On this ML800 my ring was almost worn out .43 if I recall and my team fast Eddie ceramics was shot IE no good, all in a shocking time of just 19 hrs and based off my own personal info I no the MX5 will do many more than 40hrs before a ring is due a change, estimated at 60 hrs VS ML800 at 19hrs. Sent from my iPhone using Tapatalk Cheers for that I will bear this in mind it's only done about 2hours run in time. The Baja came with a spare head piston and ring so will use that once mine does eventually go pop lol. Are the 30,5cc 4bolt conversion kits easy to put in to my 23cc engine as this might be the next purchase for the engine once I've killed both heads lol Quote Link to comment Share on other sites More sharing options...
Titaniumrc Posted August 30, 2015 Share Posted August 30, 2015 (edited) Cheers for that I will bear this in mind it's only done about 2hours run in time. The Baja came with a spare head piston and ring so will use that once mine does eventually go pop lol. Are the 30,5cc 4bolt conversion kits easy to put in to my 23cc engine as this might be the next purchase for the engine once I've killed both heads lolHope you'd need a 4 bolt bottom end unless yours is a 4 bolt then yep easy. Sent from my iPhone using Tapatalk Edited August 30, 2015 by Titaniumrc Quote Link to comment Share on other sites More sharing options...
andyknight Posted August 30, 2015 Share Posted August 30, 2015 I would think the 23cc is a 2 bolt. Quote Link to comment Share on other sites More sharing options...
John_RCModelz Posted August 30, 2015 Share Posted August 30, 2015 (edited) I think they changed them to a 4 bolt Edited August 30, 2015 by John_RCModelz Quote Link to comment Share on other sites More sharing options...
mark35 Posted August 30, 2015 Share Posted August 30, 2015 I think they changed them to a 4 bolt in that case you would have to split the case an put a stroker crank in an while you at it new seals and bearing would be advised. Not a hard task tho tbf.. Quote Link to comment Share on other sites More sharing options...
John_RCModelz Posted August 30, 2015 Share Posted August 30, 2015 If fitting the 30.5 kit it comes with the crank 1 Quote Link to comment Share on other sites More sharing options...
jayc Posted September 3, 2015 Author Share Posted September 3, 2015 Yeah it's a 4bolt don't know why but it sure is lol. I bought a 29cc for my brother in law last week from rc modelz and to be hounest mine is faster anyway lol both stock tuning both fully ran in using same fuel and a brand new ngk spark plug and he can't catch me we swapped to make sure he wasn't been a girl driving it and I couldn't catch him when he ha mine lol 23cc all the way I think now? Does any one now why it's fast I know it revs higher but surely the torque should make up for it in the 29cc? Quote Link to comment Share on other sites More sharing options...
rctruckz Posted September 9, 2015 Share Posted September 9, 2015 Been using castrol a747 on my zen for past 10 years pretty much ;-) Quote Link to comment Share on other sites More sharing options...
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