SUV engines: compression gain repeated and held over mileage

Compression rose on every cylinder measured, the gain repeated on the second engine and held in service. Engines of two SUVs, ATP Khabarovskenergo JSC.

ATP Khabarovskenergo JSC, Khabarovsk · reports signed by senior foreman A. N. Novikov, the head of the repair shops and a representative of XADO Corporation

Khabarovsk, Russia · both reports dated 06.02.2002, measurements taken before treatment and after a control run

PRODUCTXADO technologyrestorative engine repair without disassembly

TEST OBJECTEngines of two SUVsMITSUBISHI CHALLENGER · TOYOTA LAND CRUISER · cylinder-piston group

DOCUMENT TYPETechnical reports
of the companywith signatures of officials and a stamp

What repeated on both vehicles

↑6.9-16.7%

compression by cylinder, MITSUBISHI CHALLENGER, 12.0-12.5 → 14.0-14.5 kgf/cm²

↑6.9-16.7%

compression by cylinder, TOYOTA LAND CRUISER, 35.0-36.0 → 38.5-39.0 kgf/cm²

VEHICLE	WHAT WAS MEASURED	MILEAGE BEFORE THE RE-TEST	REPORT DATE
MITSUBISHI CHALLENGER	Compression by cylinder, kgf/cm²	1500 km	06.02.2002
TOYOTA LAND CRUISER	Compression by cylinder, kgf/cm²	3000 km	06.02.2002

Compression by cylinder: before treatment and after the control run

VEHICLE	CYLINDER	BEFORE, kgf/cm²	AFTER, kgf/cm²	CHANGE
MITSUBISHI CHALLENGER	No. 1	12.5	14.5	+16.0 %
MITSUBISHI CHALLENGER	No. 2	12.0	14.0	+16.7 %
MITSUBISHI CHALLENGER	No. 3	12.5	14.0	+12.0 %
TOYOTA LAND CRUISER	No. 1	36.0	39.0	+8.3 %
TOYOTA LAND CRUISER	No. 3	35.0	38.5	+10.0 %
TOYOTA LAND CRUISER	No. 4	36.0	38.5	+6.9 %

Measurement before the restorative repair with XADO technology and a repeat measurement after the control run; both measurements were made in the presence of the head of the repair shops and the senior foreman of the company.

Conclusion from the two reports

Both reports of ATP Khabarovskenergo JSC were signed on the same day and describe the same job on different vehicles: restorative engine repair with XADO technology without disassembly, a compression measurement before treatment and a repeat one after a control run. On the MITSUBISHI CHALLENGER compression rose by 12.0-16.7 % on every cylinder measured, on the TOYOTA LAND CRUISER by 6.9-10.0 %; on no cylinder did it fall. The gain was obtained on two different engines with different compression levels and was confirmed not on the day of treatment but after 1500 and 3000 km of normal service: the restored sealing of the cylinder-piston group holds up in service. Compression is capped from above by the manufacturer's rated value — the growth runs towards it and stops there, which is why the score here is in percent, not in multiples. The measurements were made in the presence of company officials, and both reports carry a stamp.

The results apply to the engines of the listed SUVs from the fleet of ATP Khabarovskenergo JSC and to their operating conditions; on other vehicles and duty cycles the figures may differ. The originals of both reports, with signatures and stamps, are published in full and available for download.

Current equivalent

Revitalizant gel for diesel enginesDiesel engines
Revitalizant gel for petrol enginesPetrol engines
Revitalizant gel for cylinder restorationEngine cylinders, deep wear

How such units are treated: Diesel engine Petrol engine Cylinder-piston group

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