Going to have to check mine again, as my tech gave me the following figures - All taken when the engine was hot following a run after my timing chain overhaul.
Cyl 1: 195
Cyl 2: 200
Cyl 3: 200
Cyl 4: 200
Cyl 5: 180
Cyl 6: 180
Cyl 7: 200
Cyl 8: 200
Going to have to check mine again, as my tech gave me the following figures - All taken when the engine was hot following a run after my timing chain overhaul.
Cyl 1: 195
Cyl 2: 200
Cyl 3: 200
Cyl 4: 200
Cyl 5: 180
Cyl 6: 180
Cyl 7: 200
Cyl 8: 200
90k Miles
Castrol 5/40 Oil
Test carried out hot and wet (Fuel Supply Not Disabled)
90k Miles
Castrol 5/40 Oil
Test carried out hot and wet (Fuel Supply Not Disabled)
Year of the S4: 2005 B6 S4
Motor size: OEM 4.2 BHF
Mileage: 87,000
Oil Type/OCI: Mobil 1 0W-40 / 5,000mi
Consumption: ~half a quart every 5k
Compression: Leakdown%:
Cyl 1: 155 N/A
Cyl 2: 160 N/A
Cyl 3: 151 N/A
Cyl 4: 152 N/A
Cyl 5: 153 N/A
Cyl 6: 151 N/A
Cyl 7: 159 N/A
Cyl 8: 160 N/A
Year of the S4: 2005 B6 S4
Motor size: OEM 4.2 BHF
Mileage: 73,372
Oil Type/OCI: Castrol Syntec 5W-40 / N/A
Consumption: N/A
Compression: Leakdown%:
Cyl 1: 145 2
Cyl 2: 150 2
Cyl 3: 145 2
Cyl 4: 140 2
Cyl 5: 145 2
Cyl 6: 145 2
Cyl 7: 145 2
Cyl 8: 140 2
Year of the S4: 2005 B6 S4
Motor size: OEM 4.2 BHF
Mileage: 87,000
Oil Type/OCI: Mobil 1 0W-40 / 5,000mi
Consumption: ~half a quart every 5k
Compression: Leakdown%:
Cyl 1: 155 N/A
Cyl 2: 160 N/A
Cyl 3: 151 N/A
Cyl 4: 152 N/A
Cyl 5: 153 N/A
Cyl 6: 151 N/A
Cyl 7: 159 N/A
Cyl 8: 160 N/A
Year of the S4: 2005 B6 S4
Motor size: OEM 4.2 BHF
Mileage: 73,372
Oil Type/OCI: Castrol Syntec 5W-40 / N/A
Consumption: N/A
Compression: Leakdown%:
Cyl 1: 145 2
Cyl 2: 150 2
Cyl 3: 145 2
Cyl 4: 140 2
Cyl 5: 145 2
Cyl 6: 145 2
Cyl 7: 145 2
Cyl 8: 140 2
2005 B6 S4 Base
OEM 4.2L
Mileage: 163,000
Car was at temp
15 cranks per cylinder
Pulled the fuel pump fuse after car shut down
150 [4] ---- [8] 148
142 [3] ---- [7] 154
147 [2] ---- [6] 143
140 [1] ---- [5] 145
2005 B6 S4 Base
OEM 4.2L
Mileage: 163,000
Car was at temp
15 cranks per cylinder
Pulled the fuel pump fuse after car shut down
150 [4] ---- [8] 148
142 [3] ---- [7] 154
147 [2] ---- [6] 143
140 [1] ---- [5] 145
Compression test courtesy of b6dolphinS4!
Year: B7, 2006 S4
Motor: OEM 4.2
Mileage: 99,000
Cyl 1: 150
Cyl 2: 155
Cyl 3: 148
Cyl 4: 153
Cyl 5: 155
Cyl 6: 153
Cyl 7: 160
Cyl 8: 165
Oil Change: Liqui Moly 5w40
Compression test courtesy of b6dolphinS4!
Year: B7, 2006 S4
Motor: OEM 4.2
Mileage: 99,000
Cyl 1: 150
Cyl 2: 155
Cyl 3: 148
Cyl 4: 153
Cyl 5: 155
Cyl 6: 153
Cyl 7: 160
Cyl 8: 165
Oil Change: Liqui Moly 5w40
Year: 2004 S4
Motor: OEM 4.2
Mileage: 51300
1 = 127
2 = 138
3 = 129
4 = 129
5 = 109
6 = 111
7 = 125
8 = 122
Just purchased car, no idea on history. Today is not burning massive oil, 1qt per 3k miles. Normally does not have startup rattle.
Year: 2004 S4
Motor: OEM 4.2
Mileage: 51300
1 = 127
2 = 138
3 = 129
4 = 129
5 = 109
6 = 111
7 = 125
8 = 122
Just purchased car, no idea on history. Today is not burning massive oil, 1qt per 3k miles. Normally does not have startup rattle.
Year: 2005 S4
Motor: OEM 4.2
Mileage: 110,000
Engine warm, fuel pump fuse pulled, accelerator pedal held down, 8 cranks per test. Wet test results:
1 = 130
2 = 150
3 = 135
4 = 145
5 = 145
6 = 160
7 = 150
8 = 160
Year: 2005 S4
Motor: OEM 4.2
Mileage: 110,000
Engine warm, fuel pump fuse pulled, accelerator pedal held down, 8 cranks per test. Wet test results:
1 = 130
2 = 150
3 = 135
4 = 145
5 = 145
6 = 160
7 = 150
8 = 160
Year: 2007 B7 RS4
Engine: OEM BNS 4.2 FSI, JHM tune for Milltek exhaust
Mileage: 98,348
Results, fuel pump fuse pulled, cold engine:
Cylinder 1 - 145 psi compression, 0 percent, e.g. 100 psi @ 100 psi
Cylinder 2 - 143 psi compression, 1 percent, e.g. 99 psi @ 100 psi
Cylinder 3 - 140 psi compression, 4 percent, e.g. 96 psi @ 100 psi
Cylinder 4 - 152 psi compression, 0 percent, e.g. 100 psi @ 100 psi
Cylinder 5 - 145 psi compression, 6 percent, e.g. 94 psi @ 100 psi
Cylinder 6 - 140 psi compression, 4 percent, e.g. 96 psi @ 100 psi
Cylinder 7 - 145 psi compression, 1 percent, e.g. 99 psi @ 100 psi
Cylinder 8 - 153 psi compression, 0 percent, e.g. 100 psi @ 100 psi
Borescope looked good in each cylinder.
Seems like a fairly healthy engine.
Year: 2007 B7 RS4
Engine: OEM BNS 4.2 FSI, JHM tune for Milltek exhaust
Mileage: 98,348
Results, fuel pump fuse pulled, cold engine:
Cylinder 1 - 145 psi compression, 0 percent, e.g. 100 psi @ 100 psi
Cylinder 2 - 143 psi compression, 1 percent, e.g. 99 psi @ 100 psi
Cylinder 3 - 140 psi compression, 4 percent, e.g. 96 psi @ 100 psi
Cylinder 4 - 152 psi compression, 0 percent, e.g. 100 psi @ 100 psi
Cylinder 5 - 145 psi compression, 6 percent, e.g. 94 psi @ 100 psi
Cylinder 6 - 140 psi compression, 4 percent, e.g. 96 psi @ 100 psi
Cylinder 7 - 145 psi compression, 1 percent, e.g. 99 psi @ 100 psi
Cylinder 8 - 153 psi compression, 0 percent, e.g. 100 psi @ 100 psi
Borescope looked good in each cylinder.
Seems like a fairly healthy engine.
Any reason you did with engine cold? Typically you see these done with the engine warmed up. Just curious. Consistent results across the board though.
Any reason you did with engine cold? Typically you see these done with the engine warmed up. Just curious. Consistent results across the board though.
Year: 2004 B6
Engine: OEM 4.2 BHF
Mileage: 158,000
burns about 1 qt every 1600-2k miles
Cyl 1:144
Cyl 2:152
Cyl 3:147
Cyl 4:150
Cyl 5:137
Cyl 6:137
Cyl 7:142
Cyl 8:143
followed factory procedure as per Elsawin - engine oil above 30C (approx.), all plugs pulled, throttle pedal pushed while testing (not sure that matters but it’s in the directions, I also had the throttle plate manually held open). The engine was not warmed up to operating temp before the test but the temp outside was 30C so the engine oil should’ve been at about the proper temp.
Year: 2004 B6
Engine: OEM 4.2 BHF
Mileage: 158,000
burns about 1 qt every 1600-2k miles
Cyl 1:144
Cyl 2:152
Cyl 3:147
Cyl 4:150
Cyl 5:137
Cyl 6:137
Cyl 7:142
Cyl 8:143
followed factory procedure as per Elsawin - engine oil above 30C (approx.), all plugs pulled, throttle pedal pushed while testing (not sure that matters but it’s in the directions, I also had the throttle plate manually held open). The engine was not warmed up to operating temp before the test but the temp outside was 30C so the engine oil should’ve been at about the proper temp.