ShadowsPapa
Well-Known Member
- First Name
- Bill
- Joined
- Oct 12, 2019
- Threads
- 247
- Messages
- 40,514
- Reaction score
- 54,044
- Location
- Runnells, Iowa
- Vehicle(s)
- '25 JTMX, '23 JLU 4xe, '82 SX4, '73 Javelin
- Occupation
- Retired auto mechanic, frmr gov't ntwrk security admin
- Vehicle Showcase
- 3
Keep in mind, different oil will darken for different reasons.Did the JTR's fourth oil change; second done by me. The first two were the Jeep Waves changes.
Both changes done by me used M1 Truck and SUV 0W20 10k mile and M1 20k mile filter, with mileage intervals in the 7-8k range, and maintenance minder showing around 10%. The M1 filter had plenty of tan color left, unlike the filter used by the dealer removed in the prior oil change. The oil was definitely dark.
There was an unplanned fifty minute round trip for a replacement oil plug. The rubber washer fell apart, or dissolved, nothing left around the threads but strings. The corners on the head also were showing some rounding
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If oil A looks dark after 7,000 miles but oil B looks not as dark after 7,000 miles - it can simply be a difference in the chemistry, even in the SAME brand if it's a different version of their oil.
Welcome to our world, eh?Midwest: Where sometimes it's -10 on Monday and 80 on Wednesday.
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