oil
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Junior User
Joined: Nov 2005
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oil
I have 1979 F250 400 engine.I've heard alot about synthetic oil lately.
I currently run 5w30 penzoil.Would it be in my best interest to run synthetic oil in this engine.I have 30000 miles on it.What are the advantages of running synthetic.If this would be best on my engine would like to switch over.
I live in Ohio wether cold weather makes a difference.Would like some input.
I just put this engine in about ayear and a half ago.
I currently run 5w30 penzoil.Would it be in my best interest to run synthetic oil in this engine.I have 30000 miles on it.What are the advantages of running synthetic.If this would be best on my engine would like to switch over.
I live in Ohio wether cold weather makes a difference.Would like some input.
I just put this engine in about ayear and a half ago.
Senior User
Joined: Dec 2005
Posts: 216
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From: boondocks, tennessee
Originally Posted by seventyseven250
Synthetic is only nessesary if you plan on extending your oil change intervals. That's my take on this issue.
Post Fiend
Joined: Jun 2001
Posts: 5,228
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From: Running Springs CA
There is nothing in synthetic fluids that inherently reduce heat and friction. This is a lot of hype from the sellers of synthetics. Friction modifiers are additives that are present in "energy conserving" motor oils. They do not reduce wear, only hydrodynamic drag from the oil, primarily in the piston ring area.
The main advantage is better cold flow at arctic temperatures. Extended drain intervals are also possible, but only if operating conditions permit, such as avoiding frequent short trips.
Modern hydroprocessed "mineral" oils have improved so much in recent years that the synthetic difference is very small, especially compared to the price difference.
Jim
The main advantage is better cold flow at arctic temperatures. Extended drain intervals are also possible, but only if operating conditions permit, such as avoiding frequent short trips.
Modern hydroprocessed "mineral" oils have improved so much in recent years that the synthetic difference is very small, especially compared to the price difference.
Jim
Lead Driver
Joined: Jun 2005
Posts: 8,467
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From: Calgary Canada
Thank you jimandmandy for saying that so well. The companies that sell oil like you to think that the more expensive ones "help reduce power-robbing friction" more than the cheapies, but that is simply not true.
Jim also brings up a good point about arctic temperatures. There is little benefit to be seen for most areas of the world, as it just does not get cold enough often enough.
Jim also brings up a good point about arctic temperatures. There is little benefit to be seen for most areas of the world, as it just does not get cold enough often enough.
Senior User
Joined: Apr 2005
Posts: 117
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"Friction modifiers are additives that are present in "energy conserving" motor oils. They do not reduce wear, only hydrodynamic drag from the oil, primarily in the piston ring area."
Not true FM's will reduce wear rates slightly by reduceing friction on rubbing surfaces they do not work in a full hydrodynamic regime but the EC oils are blended to the thinner end of the vis grade which will reduce the hydrodynamic drag. But both of these properties are avalible in both syn and dino so IMHO the syn will offer longer darin interval with better oxidation/sludge/coke tendency.
bruce
Not true FM's will reduce wear rates slightly by reduceing friction on rubbing surfaces they do not work in a full hydrodynamic regime but the EC oils are blended to the thinner end of the vis grade which will reduce the hydrodynamic drag. But both of these properties are avalible in both syn and dino so IMHO the syn will offer longer darin interval with better oxidation/sludge/coke tendency.
bruce
Last edited by bruce381; Nov 12, 2006 at 02:31 PM.
