For your 'enjoyment'. Please see the NOTES at the bottom.
NOTES :
1) This started as an experiment for evaluating different oils in this engine and stretching the OCI. It started with QS Advanced Synthetic that ran from Dec 22/05 to Mar 1/06. That is the oldest analysis and is furthest right. I was new to BITOG and up to that point I was afraid to run OCI much longer than 3K mi (5000 km) based on the checkered history of the 2.7 L V6.
2) After the second UOA in May/06, I started a series of 3 consecutive ARX clean/rinse cycles. Dino was used throughout and no UOA were done from May to Oct/06 until the very last ARX Rinse (Rinse #3) with yellow jug Pennzoil 5W-30. Pretty good UOA for the yellow bottle !
3) LC was used consistently from Sept/06 onward but was not used in the most recent oil change (Amsoil 0W-30). LC flushes ( 10 - 20% LC) were also done at the end of each oil change starting with the Oct 1/06 oil change, but the LC flush is not included in any of the samples for analysis. Oil was drained/sampled prior to the LC flush.
4) I realize that the OCI are short compared to what is being touted by most people here. But for consistency of comparison I decided to keep the OCI all roughly the same since I started with a 6000 KM OCI. You can also see me gradually stretching them out. People will scream about the short run on the Amsoil 0W-30 but again the purpose was for consistency of comparison. I got the Amsoil cheap enough that the short run doesn't bother me (much).
5) All analysis were done by WearCheck in Mississauga except for the most recent one (Amsoil 0W-30, March 4/07) which was done by FluidLife. I learned that the oxidation/nitration/sulfation numbers that Wearcheck provide are relative values based on the last 100,000 samples they've analyzed. In other words they tell me where I rank compared to everyone else in their database (diesels, dump trucks, nat gas engines, etc), but they don't provide the actual quantitative numbers for my sample. Mostly useless I believe. On the other hand, FluidLife provides the actual Absorbance reading so I thought I'd give them a try.
Interesting that FluidLife checked their database while I was dropping off the sample, found that they didn't have any baseline data for Amsoil 0W-30 and said they would need that for the oxidation/nitration/sulfation tests. I happened to have a new full quart bottle in the trunk so we cracked it open and they took 100 mls. When I got my analysis back, they had done a full VOA on the Amsoil, which they included with my sample results. I like these guys !
Considering that the Chrysler 2.7L V6 is hard on oil, anyone with a normal engine should be able to use the above results to extrapolate a longer and more reasonable OCI with any of the oils listed.
That's all folks.
NOTES :
1) This started as an experiment for evaluating different oils in this engine and stretching the OCI. It started with QS Advanced Synthetic that ran from Dec 22/05 to Mar 1/06. That is the oldest analysis and is furthest right. I was new to BITOG and up to that point I was afraid to run OCI much longer than 3K mi (5000 km) based on the checkered history of the 2.7 L V6.
2) After the second UOA in May/06, I started a series of 3 consecutive ARX clean/rinse cycles. Dino was used throughout and no UOA were done from May to Oct/06 until the very last ARX Rinse (Rinse #3) with yellow jug Pennzoil 5W-30. Pretty good UOA for the yellow bottle !
3) LC was used consistently from Sept/06 onward but was not used in the most recent oil change (Amsoil 0W-30). LC flushes ( 10 - 20% LC) were also done at the end of each oil change starting with the Oct 1/06 oil change, but the LC flush is not included in any of the samples for analysis. Oil was drained/sampled prior to the LC flush.
4) I realize that the OCI are short compared to what is being touted by most people here. But for consistency of comparison I decided to keep the OCI all roughly the same since I started with a 6000 KM OCI. You can also see me gradually stretching them out. People will scream about the short run on the Amsoil 0W-30 but again the purpose was for consistency of comparison. I got the Amsoil cheap enough that the short run doesn't bother me (much).
5) All analysis were done by WearCheck in Mississauga except for the most recent one (Amsoil 0W-30, March 4/07) which was done by FluidLife. I learned that the oxidation/nitration/sulfation numbers that Wearcheck provide are relative values based on the last 100,000 samples they've analyzed. In other words they tell me where I rank compared to everyone else in their database (diesels, dump trucks, nat gas engines, etc), but they don't provide the actual quantitative numbers for my sample. Mostly useless I believe. On the other hand, FluidLife provides the actual Absorbance reading so I thought I'd give them a try.
Interesting that FluidLife checked their database while I was dropping off the sample, found that they didn't have any baseline data for Amsoil 0W-30 and said they would need that for the oxidation/nitration/sulfation tests. I happened to have a new full quart bottle in the trunk so we cracked it open and they took 100 mls. When I got my analysis back, they had done a full VOA on the Amsoil, which they included with my sample results. I like these guys !
Considering that the Chrysler 2.7L V6 is hard on oil, anyone with a normal engine should be able to use the above results to extrapolate a longer and more reasonable OCI with any of the oils listed.
That's all folks.
