Switching to Rotella 15w40
#33
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Year: 1996
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I use rotella 15w-40 in my Honda trx450r wheeler in the summer and switch to rotella 10w-30 for the colder months and to store it in the winter. I switched from mobil 1 synthetic to rotella because it is dirt cheap and runs much smoother and cleaner than the Mobil. And its only $11 a gallon!
#34
Been running Rotella 15w40 for a couple years now...224K on the ticker and no problems yet. I also have used it in my '81 F150 (302 V8) without any problems.
Sure, it's a little thicker than 10w30, but if it can handle being in a dirty old compression-ignition engine, it can certainly do fine in a little gas engine. Besides, it meets the oil specification for the 4.0 anyway (I think the 15w40 is an SM oil...if I recall the Jeep owner's manual calls for a rating lower than that). Once it's heated up, it thins out moderately. As I said, I've had no problems with this oil.
Personally I recommend running Rotella 15w40 with a Wix filter. Stay away from Fram if at all possible, I have read stories about everything from lowered oil pressure when using a Fram to hearing how the filter media disintegrated inside the filter housing.
Sure, it's a little thicker than 10w30, but if it can handle being in a dirty old compression-ignition engine, it can certainly do fine in a little gas engine. Besides, it meets the oil specification for the 4.0 anyway (I think the 15w40 is an SM oil...if I recall the Jeep owner's manual calls for a rating lower than that). Once it's heated up, it thins out moderately. As I said, I've had no problems with this oil.
Personally I recommend running Rotella 15w40 with a Wix filter. Stay away from Fram if at all possible, I have read stories about everything from lowered oil pressure when using a Fram to hearing how the filter media disintegrated inside the filter housing.
#35
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Year: 1996
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Engine: 4.0 Inline 6
Been running Rotella 15w40 for a couple years now...224K on the ticker and no problems yet. I also have used it in my '81 F150 (302 V8) without any problems.
Sure, it's a little thicker than 10w30, but if it can handle being in a dirty old compression-ignition engine, it can certainly do fine in a little gas engine. Besides, it meets the oil specification for the 4.0 anyway (I think the 15w40 is an SM oil...if I recall the Jeep owner's manual calls for a rating lower than that). Once it's heated up, it thins out moderately. As I said, I've had no problems with this oil.
Personally I recommend running Rotella 15w40 with a Wix filter. Stay away from Fram if at all possible, I have read stories about everything from lowered oil pressure when using a Fram to hearing how the filter media disintegrated inside the filter housing.
Sure, it's a little thicker than 10w30, but if it can handle being in a dirty old compression-ignition engine, it can certainly do fine in a little gas engine. Besides, it meets the oil specification for the 4.0 anyway (I think the 15w40 is an SM oil...if I recall the Jeep owner's manual calls for a rating lower than that). Once it's heated up, it thins out moderately. As I said, I've had no problems with this oil.
Personally I recommend running Rotella 15w40 with a Wix filter. Stay away from Fram if at all possible, I have read stories about everything from lowered oil pressure when using a Fram to hearing how the filter media disintegrated inside the filter housing.
#36
No problem! BTW I think Napa filters are made by Wix.
Something I've considered doing between oil changes is changing out the filter. Change your oil like usual, every 3,000 miles, 3 months, 6 months, whatever, but halfway through that time, change the filter. That way you have better filtration during the time you have the oil in the motor.
I never get any valve noise or anything with Rotella. Not even overnight. I get a little if my truck sits more than overnight, but that's normal. It goes away after oil pressure builds up.
Something I've considered doing between oil changes is changing out the filter. Change your oil like usual, every 3,000 miles, 3 months, 6 months, whatever, but halfway through that time, change the filter. That way you have better filtration during the time you have the oil in the motor.
I never get any valve noise or anything with Rotella. Not even overnight. I get a little if my truck sits more than overnight, but that's normal. It goes away after oil pressure builds up.
#37
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i run napa gold in my jeep and my honda civic. good filters, cant say anything bad about them.
in my jeep i'm running mobile 0w30 and it seems to like it. i only get about 5 seconds of lifter tapping when i start it after sitting a few days. if i drive the jeep every day, there is no lifter noise. and that is with 237,000 miles on the jeep motor.
with gas at $3.87 a gallon here, i predict i'll be driving the civic alot more.
in my jeep i'm running mobile 0w30 and it seems to like it. i only get about 5 seconds of lifter tapping when i start it after sitting a few days. if i drive the jeep every day, there is no lifter noise. and that is with 237,000 miles on the jeep motor.
with gas at $3.87 a gallon here, i predict i'll be driving the civic alot more.
#38
I also run that 15-40 in my Suzuki TL1000R, but it requires that and again since diesel oil doesn't have friction modifiers in it, its safe to use on a wet-sump clutch.
#39
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I always ran 10-30. I tried the 15-40 but with 250,000 miles I dont think the oil pump did. With the thicker oil it created greater friction therefore lowering my oil pressure and causing a worse tick. When I switched to 5-40 the oil pressure was better than normal and the tick was gone. Not saying the same will happen, but it goes to show the science is correct.
#41
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One, because I like the added detergents in "diesel oil" to keep the motor clean, and 2, because ive still got about 150 gallons of it left to be used.
#42
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Year: 1999 Stone White
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#45
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http://www.widman.biz/uploads/Corvair_oil.pdf
pg. 6 of 31
For a Graph view:
http://widman.biz/English/Calculators/Graph.html
Last edited by SamSissine2; 04-07-2011 at 02:18 PM. Reason: addition