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 5w30. 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 0w30 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 0w30 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 5w30. 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 0w30 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 0w30 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.
