Maybe cars that run on crank angle sensor that are tuned on MT/LT-4 have the option to do ignition timing as i have tried it on my civic-r turbo. You can ask around if your car runs on distributor and can lt/mt-4 do the ignition timing.
Originally posted by oilman
No they are no good.
Have a read.
General Remarks on Chlorinated Additives.
A number of ‘add-on’...