1st thing 1st, i have only used Xado on my Kancil 660 manual and zero experience with Ceratec. I am not a salesman nor affliated with Xado; just a 1st time user of this product, so don't expect technical write-ups or explanations.
Background : Kancil has 350k kms on the odo and was experiencing oil-in-air-filter symptom; was told by mech need to do top overhaul as piston rings were shot. As short on funding, decided to get stop gap measure; additives that can at least drag things till funds come in. Other symptoms include engine can maintain my normal driving speed when going up Bkt.Lanjan section of NKVE, generally lower/less torque driving around town and accumulation of EO at the engine breather hose of the air filter tray (those with kancil should know).
Application : Got the older formula coz cheaper mah; 3 small tubes version that Xado claims can last 60k kms. Was told by seller that don't use it on new engine oil. Let the engine oil age for 1-2k kms 1st before putting in the additive, 1 tube at 1st. After 200kms have passed, put in the 2nd tube and repeat for the 3rd tube. Was told additive won't affect EO and just drain out when next service is up. Additive was red/maroon in colour
Effect : Nothing much after the 1st tube, maybe concentration wasn't enough. 2nd tube onward can really hear valvetrain noise and general engine noise when under normal cruising really reduce a lot, especially morning cold start-up. 3rd tube was like 1st tube; not much effect felt. As I have changed the air filter during the service 2k kms before Xado application, there was light oil stain on the filter. By the 3rd tube, can see that the oil stain stop growing larger and darker. As the EO caught at the air filter tray seemed getting less.
By the end of the 7k kms OCI, can see that EO accumulated at the filter tray had dried up; should have cleaned them b4 drying up coz it turned into brittle black blocks of carbon
![Banghead :banghead: :banghead:](https://zerotohundred.com/forums/styles/default/xenforo/smilies/banghead.gif)
. Nothing else was done after the Xado was added in; just pump petrol and drive.
After the 3rd tube was added, can actually feel going up Bkt.Lanjan stretch is much better; 660cc engine can maintain speed noticeably better, can maintain 80+km/h on 5th gear. Before application, can get only about 16+km/l for normal and max 18km/l if really push it on FC quest. After application, I can get 18km/l easily on normal daily driving and about 21km/l on smoother runs.
Afterthoughts : To me, paying RM240 for a temp lease of life is OK. It lived up to what it claimed to do, but for that short 20k kms thereabout. Why I said that was because my kancil developed a leak at the crank seal clutch side thereafter. I can't be sure if it is due to the age of the seal (16years old and 350k kms) or the additive. In the end, I sent it for an engine overhaul, which surprised the mech coz he remembered my engine has EO vapour problem and it was absent when I sent it in.
You can decide for yourself if this is worth both your time and money.