Is it ok to use 5w30 in this engine for summer use? Its in a '97 Dodge Ram.
5W-30 in 360 cu in
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Yes, and it should say so in the owners manual as well.
I'd use 5w30 year round. It will protect better in cold starts and have the same protection in the heat of the summer. 10w30 is practially obsolete at this point
What do you mean by protection? ILSAC oils do NOT have the same safety margin or boundry lubrication overall as a good "HD" 10w30. There is no excessive cold start wear in the Summer. Most engine wear in moderate climes has been proved in highly technical and rigorous study 3x-7x WORSENED when revving the engine to produce power (acceleration) and the wear levels off at steady state RPM.
They probably meant that the better flow from the 5 vs.the 10 at cold/cool temperatures equates to better protection.
Makes sense to me.
Makes sense to me.
Originally Posted By: ARCOgraphite
What do you mean by protection? ILSAC oils do NOT have the same safety margin or boundry lubrication overall as a good "HD" 10w30. There is no excessive cold start wear in the Summer. Most engine wear in moderate climes has been proved in highly technical and rigorous study 3x-7x WORSENED when revving the engine to produce power (acceleration) and the wear levels off at steady state RPM.
Yeah Yeah you destroy engines and are the less than 2-3% minority so its the oil's fault.
What do you mean by protection? ILSAC oils do NOT have the same safety margin or boundry lubrication overall as a good "HD" 10w30. There is no excessive cold start wear in the Summer. Most engine wear in moderate climes has been proved in highly technical and rigorous study 3x-7x WORSENED when revving the engine to produce power (acceleration) and the wear levels off at steady state RPM.
Yeah Yeah you destroy engines and are the less than 2-3% minority so its the oil's fault.
M-1 0w30....year-round....in the Great White North...should work perfectly. If you don't have severe driving conditions....an OCI of 7500 +/- can easily be accomplished.
Keep it simple....and don't over think.
Keep it simple....and don't over think.
Originally Posted By: atc250r
Is it ok to use 5w30 in this engine for summer use? Its in a '97 Dodge Ram.
Chrysler originally recommended 10W30 for summer use due to the propensity of convnetional 5W30 of the era to shear excessively. Although the newer Energy Conserving Oils do shear by design it much better controlled than it used to be.
PS Arco they recommended 10W30 EC not HD.
Is it ok to use 5w30 in this engine for summer use? Its in a '97 Dodge Ram.
Chrysler originally recommended 10W30 for summer use due to the propensity of convnetional 5W30 of the era to shear excessively. Although the newer Energy Conserving Oils do shear by design it much better controlled than it used to be.
PS Arco they recommended 10W30 EC not HD.
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Originally Posted By: atc250r
Is it ok to use 5w30 in this engine for summer use? Its in a '97 Dodge Ram.
In accordance with ARCO's worries, if those are something you're considering, you may be able to get a 5w30 dual rated HDEO with something like an SL/SJ/CI-4 specification from a Co-op distributor.
Personally, I wouldn't worry much about using SN/GF-5 in that vehicle, but there certainly are other options if you wish to go a different route.
Is it ok to use 5w30 in this engine for summer use? Its in a '97 Dodge Ram.
In accordance with ARCO's worries, if those are something you're considering, you may be able to get a 5w30 dual rated HDEO with something like an SL/SJ/CI-4 specification from a Co-op distributor.
Personally, I wouldn't worry much about using SN/GF-5 in that vehicle, but there certainly are other options if you wish to go a different route.
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