39 replies to this topic

[t@z]

when i change gear in my car i have a flat spot (lag); might try changing it to engine oil see if that makes a difference and let you guys know :)

Edited by t@z, 03 September 2012 - 10:23 AM.

[Gr4h4m]

or a stronger spring.

[t@z]

the car drives fine im not sure its needs a new spring; its basically on boost all the time as its only a t2.... however this lil spot is something i can test. i'll change it tonight and let you all know after ace on thursday.

[ivanhoew]

Couldn't agree more. I found anything thinner than 20/50 would cause a big leanout as mine came on boost if the throttle was fully depressed rapidly when cruising. But a friend actually ran baby oil in his & had good results.
As with a lot of things it's an experiment & what works for one may not work for another.

Phil.

i tried baby oil on mine phil , but came out in rash :-(

[petehuws]

I use a bit of a mix.. I use 70% SAE20 hydraulic mineral fluid (from my mountain bike RockShox service kit) and 30% 3in1 oil shook and mixed up in an oil can, I found that was virtually the same viscosity as the genuine 'overpriced' SU stuff.

[HUBBA.HUBBA]

Surely the best oil to use is SU carb oil from SU

[Gr4h4m]

The best oil is the oil that gives the best enrichment for your car?

[jaydee]

Hehehe I love this thread, the point is there is NO one best oil. It is the oil that gives you the correct enrichment on acceleration that matters. This can vary from 3 in 1 to just about any thick grade purely because of wear and production tolerances.

The savvy tuners use the best oil for the job, and that certainly is not 1 grade!

AC

I love this thread too, also because 20w50 means that low temp viscosity is rated 20 while 100° is rated 50 and not the other way round!!!!
20W = 9500cp at -15°
50 = about 20 cst at 100°

Well actualy the SAE rating is much more complex than that, those who wants can have a read here:
http://www.zddplus.c...l Viscosity.pdf

[t@z]

well i tried the heavier engine oil 20/50 and although it didn't have that flat spot i didn't like how the car drove in traffic. it seemed quite heavy/slow to pick up the revs. i have some castrol edge that i currently use in my car which is 10/60 so will try that

[Dave S1]

Not much for a first post, but I/we have been using ATF [ Auto Trans Oil] in a 1.5 single SU... Hillclimb/ Sprints Clubman for the last 8 years with no problems.
In the process of changing to a 45 Weber for a change of induction noise, but nothing wrong with the SU/ATF oil partnership.

Will do a noobie/intro thread with pics soon.

Cheers, Dave S1 [in Oz]