What weight oil to run ?
09-10-2013 | 04:38 PM
#11
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Joined: Jun 2013
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From: AZ
http://www.bobistheoilguy.com/forums...Number=1049812
Quite a bit of bad info on this site regarding oil. This article above should be a sticky here.... I'm looking forward to hearing what BOB M has to say and recommend.
Quite a bit of bad info on this site regarding oil. This article above should be a sticky here.... I'm looking forward to hearing what BOB M has to say and recommend.
09-11-2013 | 08:05 AM
#13
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Joined: Dec 2002
Posts: 2,195
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From: Dallas, TX
Ken is in the oil business, he always offers solid, statistical based advice. One approach is to ask all what is the best oil in a defined price range?..... $3-5 qt or $13 qt? The Mobil 1 20-50 motorcycle oil is now selling for under $10 qt....with high Zinc.
ZDDP is required in a oil as it is a multifunctional additive. It not only is an anti wear, but an anti-antioxidant, it help prevents the oil from thickening over time.
Roller lifters need less zinc than flat tappet lifters.
A 20w40 and a straight 40 are the same viscosity at 210F. The 20w side of the 20w40 will help in cold engine starts, the oil pressure and flow will be faster than a straight 40.
I am running 20w50 in a roller cam motor.
Ken
Roller lifters need less zinc than flat tappet lifters.
A 20w40 and a straight 40 are the same viscosity at 210F. The 20w side of the 20w40 will help in cold engine starts, the oil pressure and flow will be faster than a straight 40.
I am running 20w50 in a roller cam motor.
Ken
09-12-2013 | 06:13 AM
#20
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Joined: Jul 2007
Posts: 3,648
Likes: 32
From: Oneida Lake NY
You better check on that, recently catalytic converters have been added to all diesel vehicles. This means the zinc level will have to be lowered in the diesel oils as well, to protect the converter. Rotella has already lowered their zinc levels, and will continue to lower them in the next phase.
