If this is your first visit, be sure to check out the FAQ by clicking the link above. You may have to register before you can post: click the register link above to proceed. To start viewing messages, select the forum that you want to visit from the selection below. |
|
|
Thread Tools | Display Modes |
#21
|
|||
|
|||
Exxon Elite Oil: More favorable oil analysis or simply coincidence?
Which metals showed a decrease?
Al 1964 Skyhawk Spokane, WA Robet Coffey wrote: We switched from Aeroshell Multigrade 15w50 to the Exxon Elite 20w50 in a Cherokee Six with a Lycoming 0-540-E4B5. We had decrease in metals as well. Decided to just stay with the Exxon. This was by no means a scientific study. We had 4 analsis before the change and are now up to 4 after. These were 40-50 hour changes in southwest Virginia in various seasons. The plane if flown roughly every 2 weeks year round. Peter R. wrote: With my rebuilt Bonanza engine, I have been faithfully sending in every oil sample drawn from the 40-50 hour oil change to Aviation Laboratories for an oil sample. When I receive the report from the lab, I log it to an MS Excel spreadsheet in order to catch any trends. Currently I have seven oil analyses logged over the 300 hours that this engine has on it. Normally I use Aeroshell Multigrade 15w50, but last winter I used Exxon Elite 20w50 for one of the oil changes under the assumption that it would combat corrosion that might occur from condensation build-up in the oil after engine-shutdown. An interesting data point has emerged that has me curious. All of the metals discovered in the oil analysis after using Exxon Elite were of significantly lower quantities when compared to the analyses from the Aeroshell multigrade, either before or after the use of the Exxon Elite. Is this just coincidence or does this indicate that perhaps Exxon Elite does provide better engine lubrication? My aircraft is a few hours away from an oil change and, as we approach winter in the Northeast, I am considering using Exxon Elite again. |
#22
|
|||
|
|||
Exxon Elite Oil: More favorable oil analysis or simply coincidence?
AL IORN COPPER NI CR LEAD 06/21/05 850 69 AEROSHELL 15W50 10 34.0 6.9 1 7 1544 38 8 N/A TIME ON UNIT IS SINCE OVERHAUL, OTHER TESTS: WATER= 0, ALL VALUES APPEAR NORMAL, RESAMPLE NEXT OIL CHANGE TO ESTABLISH WEAR TREND Normal 07/04/06 07/19/06 980 42 EX ELITE 20W50 4 26.0 6.6 1 4 1412 4 N/A TIME ON UNIT IS SINCE NEW, OIL ADDED: 5, OTHER TESTS: WATER= 0, NO ABNORMAL WEAR DETECTED could not get it to clip in but silicon went from 8 to 4. These are the only lab reports I could find on my computer, but I believe they are typical before & after. Al wrote: Which metals showed a decrease? Al 1964 Skyhawk Spokane, WA Robet Coffey wrote: We switched from Aeroshell Multigrade 15w50 to the Exxon Elite 20w50 in a Cherokee Six with a Lycoming 0-540-E4B5. We had decrease in metals as well. Decided to just stay with the Exxon. This was by no means a scientific study. We had 4 analsis before the change and are now up to 4 after. These were 40-50 hour changes in southwest Virginia in various seasons. The plane if flown roughly every 2 weeks year round. Peter R. wrote: With my rebuilt Bonanza engine, I have been faithfully sending in every oil sample drawn from the 40-50 hour oil change to Aviation Laboratories for an oil sample. When I receive the report from the lab, I log it to an MS Excel spreadsheet in order to catch any trends. Currently I have seven oil analyses logged over the 300 hours that this engine has on it. Normally I use Aeroshell Multigrade 15w50, but last winter I used Exxon Elite 20w50 for one of the oil changes under the assumption that it would combat corrosion that might occur from condensation build-up in the oil after engine-shutdown. An interesting data point has emerged that has me curious. All of the metals discovered in the oil analysis after using Exxon Elite were of significantly lower quantities when compared to the analyses from the Aeroshell multigrade, either before or after the use of the Exxon Elite. Is this just coincidence or does this indicate that perhaps Exxon Elite does provide better engine lubrication? My aircraft is a few hours away from an oil change and, as we approach winter in the Northeast, I am considering using Exxon Elite again. |
#23
|
|||
|
|||
Exxon Elite Oil: More favorable oil analysis or simply coincidence?
the margins got out of whack- AL=10 IRON=34 ect.
Robet Coffey wrote: AL IORN COPPER NI CR LEAD 06/21/05 850 69 AEROSHELL 15W50 10 34.0 6.9 1 7 1544 38 8 N/A TIME ON UNIT IS SINCE OVERHAUL, OTHER TESTS: WATER= 0, ALL VALUES APPEAR NORMAL, RESAMPLE NEXT OIL CHANGE TO ESTABLISH WEAR TREND Normal 07/04/06 07/19/06 980 42 EX ELITE 20W50 4 26.0 6.6 1 4 1412 4 N/A TIME ON UNIT IS SINCE NEW, OIL ADDED: 5, OTHER TESTS: WATER= 0, NO ABNORMAL WEAR DETECTED could not get it to clip in but silicon went from 8 to 4. These are the only lab reports I could find on my computer, but I believe they are typical before & after. Al wrote: Which metals showed a decrease? Al 1964 Skyhawk Spokane, WA Robet Coffey wrote: We switched from Aeroshell Multigrade 15w50 to the Exxon Elite 20w50 in a Cherokee Six with a Lycoming 0-540-E4B5. We had decrease in metals as well. Decided to just stay with the Exxon. This was by no means a scientific study. We had 4 analsis before the change and are now up to 4 after. These were 40-50 hour changes in southwest Virginia in various seasons. The plane if flown roughly every 2 weeks year round. Peter R. wrote: With my rebuilt Bonanza engine, I have been faithfully sending in every oil sample drawn from the 40-50 hour oil change to Aviation Laboratories for an oil sample. When I receive the report from the lab, I log it to an MS Excel spreadsheet in order to catch any trends. Currently I have seven oil analyses logged over the 300 hours that this engine has on it. Normally I use Aeroshell Multigrade 15w50, but last winter I used Exxon Elite 20w50 for one of the oil changes under the assumption that it would combat corrosion that might occur from condensation build-up in the oil after engine-shutdown. An interesting data point has emerged that has me curious. All of the metals discovered in the oil analysis after using Exxon Elite were of significantly lower quantities when compared to the analyses from the Aeroshell multigrade, either before or after the use of the Exxon Elite. Is this just coincidence or does this indicate that perhaps Exxon Elite does provide better engine lubrication? My aircraft is a few hours away from an oil change and, as we approach winter in the Northeast, I am considering using Exxon Elite again. |
Thread Tools | |
Display Modes | |
|
|
Similar Threads | ||||
Thread | Thread Starter | Forum | Replies | Last Post |
UAV's and TFR's along the Mexico boarder | John Doe | Piloting | 145 | March 31st 06 06:58 PM |
Mini-500 Accident Analysis | Dennis Fetters | Rotorcraft | 16 | September 3rd 05 11:35 AM |
Washington DC airspace closing for good? | tony roberts | Piloting | 153 | August 11th 05 12:56 AM |