Synthetic oils should get lighter and lighter as you go through changes and
all the dino stuff gets flushed out. Based on Patrick Engram's comments I
wouldn't mix the two. I'm beginning to think there's some sort of reaction
going on here.
Ron
00 PB SLT QC 4X2 5.9 46RE 3.92 LSD
For modifications see my DML Profile (URL follows)
http://www.twistedbits.net/WWWProfile/dakota/Kw9pV1EkFeOYY
-----Original Message-----
From: owner-dakota-truck@buffnet.net
[mailto:owner-dakota-truck@buffnet.net]On Behalf Of Chris Spotts
Sent: Sunday, March 25, 2001 8:49 AM
To: DML list
Subject: DML: Dark Oil?
Ok guys (and girls), here's another question about oil. I switched over to
synthetics 2 oil changes ago (about 39000 miles on the odo). The first time
I used castrol syntec and the second time I used mobile 1 (plus the good
purolator filter). My question to you guys is: should the oil become
gradually darker and darker as I drive? I have about 2000 miles on the
truck since the last oil change and the oil is noticeably darker. I never
have to add any oil and it's always the same level on the dipstick. Should
I worry that the oil is getting so dark? Or is it just because I waited so
long to change it that the synthetic is still mixing with the old dino
stuff?
One more question: can I mix oils? I have 2 qts of castrol syntec 10w30
and 2 quarts of mobile 1 5w30. Anyone think I can make some "castrol 1"
7.5w/30?
-Chris
ps- sorry for such a long post on such a boring topic
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