Synthetic Lubricants??
#16
Registered User
I'm going to 1 year or 15K oil change interval with new oil filter and make up oil at 7500 miles or 6 months but I'm also doing UOA's just to be safe.
#17
Registered User
Yeah, I change my oil every 7500 miles... It's just easier to keep up with that way...
I change Trans, diffs and transfer case every 30k...
I do alot of driving, but not alot of hauling... only on weekends and a 30ft camper usually during the summer on vacations...
I change Trans, diffs and transfer case every 30k...
I do alot of driving, but not alot of hauling... only on weekends and a 30ft camper usually during the summer on vacations...
#18
My manual says below 0*F (-18*C) should be synthetic, with no change in frequency. I don't believe in changing between dino and syn and up here -18 is the norm not unusual. I'm a fan of symthetic. You can feel the difference on a cold start.
The cost difference isn't that much but I agree on changing too early. 12km or 7500m works for me.
Cya
The cost difference isn't that much but I agree on changing too early. 12km or 7500m works for me.
Cya
#19
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Join Date: Jan 2007
Location: Cheyenne WY
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My truck is a daily driver on the weekend and tow lots of trailers during the week. Not sure but still old school for me. Change the oil every 3K with Rotella.
#20
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Every 3k is just wasting oil and filters.But you know that.Its hard to break old ways.I use to do the same thing.Was like withdrawals getting away from 3k interval.
#21
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Join Date: Jan 2008
Location: Chandler AZ
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I am running Dino oil now and have 22k miles on the truck, so I am now ready to switch to synthetic. Especially because I think dealer may be using CJ-4. I ran synthetic in my gasser (Tundra 4x4) for the last 15k before I sold it and I loved synthetic. I did'nt think I would but I actually noticed a difference. Somehow motor seemed a little snappier, quicker to rev, and definately picked up 1 mpg. I went from consistantly averaging 15 and change to 16 and change. I do a lot of miles so if this holds true it is cheaper for me to pay a little more for synthetic and pick up the savings in gas milage, not to mention posibly longer engine life. I am going to put syn it the diffs to to see if it helps MPG there too.
#22
As another member stated I run Rotella 5W40 and change oil every 3k miles. I use the best filter and oil which still cost me less than the dealers cheap filter and dino oil. The money that I save by not taking it to the dealer for servicing, enables me to run the higher quality fluids and filters.
#26
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FYI, yes the Mopar oil filter is just a rebadged Fleetguard, but it uses standard paper filtering media and not Fleetguards best the Stratapore that uses synthetic filtering media.
#27
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Join Date: Jan 2006
Location: Ames IA
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I go with the Rotella 15w40 mainly because my truck has 4:10's and screams on the interstate. My oil pressure is gettin pretty low and dont want anything thinner. I will be gettin a new oil pump this spring. But especially the way that oil costs....I stick to the 15w40. I have to put in 2 1/2 gallons every oil change. I would hate to think how much you guys need on your 5.9's
#28
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I go with the Rotella 15w40 mainly because my truck has 4:10's and screams on the interstate. My oil pressure is gettin pretty low and dont want anything thinner. I will be gettin a new oil pump this spring. But especially the way that oil costs....I stick to the 15w40. I have to put in 2 1/2 gallons every oil change. I would hate to think how much you guys need on your 5.9's
Maybe 14 w/ a bypass system.
#29
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Join Date: Dec 2007
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I go with the Rotella 15w40 mainly because my truck has 4:10's and screams on the interstate. My oil pressure is gettin pretty low and dont want anything thinner. I will be gettin a new oil pump this spring. But especially the way that oil costs....I stick to the 15w40. I have to put in 2 1/2 gallons every oil change. I would hate to think how much you guys need on your 5.9's
Nick
#30
I go with the Rotella 15w40 mainly because my truck has 4:10's and screams on the interstate. My oil pressure is gettin pretty low and dont want anything thinner. I will be gettin a new oil pump this spring. But especially the way that oil costs....I stick to the 15w40. I have to put in 2 1/2 gallons every oil change. I would hate to think how much you guys need on your 5.9's
Then run the synthetic oil!
You will like it!