View Poll Results: Preferred Oil Viscosity
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Oil Viscosity
01-24-09, 04:39 PM
#177
Damn all this talk and i forgot about my own oil change! lol
I just checked my log book and last oil change was july 10, 2008
I dont drive it much but ALOT of short trips and recently since its cold out, mainly just starting up to let it idle, and moving up and down (to keep tires round).
I smelled the oil and it smells like gas, normally what i always smell though.
I just checked my log book and last oil change was july 10, 2008
I dont drive it much but ALOT of short trips and recently since its cold out, mainly just starting up to let it idle, and moving up and down (to keep tires round).
I smelled the oil and it smells like gas, normally what i always smell though.
01-24-09, 04:56 PM
#178
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Ahh that's good to know, if that is actually true... I am glad I switched.
I remember I had a turbo fc with a built atkins engine... 3mm seals and ported. When I would change the oil on that it would STINK of gas but I had it checked out and was told that it's normal.
But today after I drained it, I kept on sniffing it. I smelled it a little bit but nothing like the FC I had.
I remember I had a turbo fc with a built atkins engine... 3mm seals and ported. When I would change the oil on that it would STINK of gas but I had it checked out and was told that it's normal.
But today after I drained it, I kept on sniffing it. I smelled it a little bit but nothing like the FC I had.
01-24-09, 04:58 PM
#179
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01-24-09, 05:59 PM
#182
01-25-09, 07:57 AM
#188
"Elusive, not deceptive!”
Something to consider.
When you start your cold engine with heavy weight oils the filter is by-passed and contaminants are sent to your bearings and turbo.
Mazda’s specification is for the filter to by-pass when it sees a 14 psi differential pressure across the filter element (and the finer the filter, the higher differential). The relief valve is made into the filter. Unless you are using a remote full flow filter our filter continues to by-pass contaminants till the oil is warm.
I worked for an oil company on turbine and reciprocal powered aircraft. On the engines ond transmissions we had impending by-pass indicators on the filter heads to indicate when the filter was becoming contaminated. On cold mornings (below 40º F they would “pop” regularly because of the thick oil. This was with 100% synthetic.
I try to keep my oil pressure below 100 psi on starts and will not move the car till I have 50º C oil temp.
Barry
When you start your cold engine with heavy weight oils the filter is by-passed and contaminants are sent to your bearings and turbo.
Mazda’s specification is for the filter to by-pass when it sees a 14 psi differential pressure across the filter element (and the finer the filter, the higher differential). The relief valve is made into the filter. Unless you are using a remote full flow filter our filter continues to by-pass contaminants till the oil is warm.
I worked for an oil company on turbine and reciprocal powered aircraft. On the engines ond transmissions we had impending by-pass indicators on the filter heads to indicate when the filter was becoming contaminated. On cold mornings (below 40º F they would “pop” regularly because of the thick oil. This was with 100% synthetic.
I try to keep my oil pressure below 100 psi on starts and will not move the car till I have 50º C oil temp.
Barry
01-25-09, 09:42 AM
#189
Something to consider.
When you start your cold engine with heavy weight oils the filter is by-passed and contaminants are sent to your bearings and turbo.
Mazda’s specification is for the filter to by-pass when it sees a 14 psi differential pressure across the filter element (and the finer the filter, the higher differential). The relief valve is made into the filter. Unless you are using a remote full flow filter our filter continues to by-pass contaminants till the oil is warm.
I worked for an oil company on turbine and reciprocal powered aircraft. On the engines ond transmissions we had impending by-pass indicators on the filter heads to indicate when the filter was becoming contaminated. On cold mornings (below 40º F they would “pop” regularly because of the thick oil. This was with 100% synthetic.
I try to keep my oil pressure below 100 psi on starts and will not move the car till I have 50º C oil temp.
Barry
When you start your cold engine with heavy weight oils the filter is by-passed and contaminants are sent to your bearings and turbo.
Mazda’s specification is for the filter to by-pass when it sees a 14 psi differential pressure across the filter element (and the finer the filter, the higher differential). The relief valve is made into the filter. Unless you are using a remote full flow filter our filter continues to by-pass contaminants till the oil is warm.
I worked for an oil company on turbine and reciprocal powered aircraft. On the engines ond transmissions we had impending by-pass indicators on the filter heads to indicate when the filter was becoming contaminated. On cold mornings (below 40º F they would “pop” regularly because of the thick oil. This was with 100% synthetic.
I try to keep my oil pressure below 100 psi on starts and will not move the car till I have 50º C oil temp.
Barry
LOL
Quick answer to that, til i see about 110-120F WATER temp, which takes about 8-10 minutes in this cold weather.
01-25-09, 10:38 AM
#190
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Something to consider.
When you start your cold engine with heavy weight oils the filter is by-passed and contaminants are sent to your bearings and turbo.
Mazda’s specification is for the filter to by-pass when it sees a 14 psi differential pressure across the filter element (and the finer the filter, the higher differential). The relief valve is made into the filter. Unless you are using a remote full flow filter our filter continues to by-pass contaminants till the oil is warm.
I worked for an oil company on turbine and reciprocal powered aircraft. On the engines ond transmissions we had impending by-pass indicators on the filter heads to indicate when the filter was becoming contaminated. On cold mornings (below 40º F they would “pop” regularly because of the thick oil. This was with 100% synthetic.
I try to keep my oil pressure below 100 psi on starts and will not move the car till I have 50º C oil temp.
Barry
When you start your cold engine with heavy weight oils the filter is by-passed and contaminants are sent to your bearings and turbo.
Mazda’s specification is for the filter to by-pass when it sees a 14 psi differential pressure across the filter element (and the finer the filter, the higher differential). The relief valve is made into the filter. Unless you are using a remote full flow filter our filter continues to by-pass contaminants till the oil is warm.
I worked for an oil company on turbine and reciprocal powered aircraft. On the engines ond transmissions we had impending by-pass indicators on the filter heads to indicate when the filter was becoming contaminated. On cold mornings (below 40º F they would “pop” regularly because of the thick oil. This was with 100% synthetic.
I try to keep my oil pressure below 100 psi on starts and will not move the car till I have 50º C oil temp.
Barry
01-25-09, 11:56 AM
#191
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and contaminants are sent to your bearings and turbo.
I worked for an oil company on turbine and reciprocal powered aircraft. On the engines ond transmissions we had impending by-pass indicators on the filter heads to indicate when the filter was becoming contaminated. On cold mornings (below 40º F they would “pop” regularly because of the thick oil. This was with 100% synthetic.
01-25-09, 12:04 PM
#192
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01-25-09, 04:55 PM
#196
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when cold it's more like 100, it takes about 10-15 minutes or so to reach operating temps (longer than it takes the water to peak out around 82 C)...you can see why short trips are so hard on oil
01-26-09, 07:36 AM
#198
"Elusive, not deceptive!”
http://ferrarichat.com/forum/showthread.php?t=136052
I went from using 20w50 to 10w40 to 10w30 to 5w30 now. The indicated pressures at hot idle and hot cruise are very close to identical.
true, and I was aware of that, but 5w-30 is going to be super thin with fuel dilution
You should not have much fuel dilution. How much boost are you running? Mineral based multigrade oils revert to lower number with heat and age when the viscosity enhancer die.
I'm not sure all filters have this issue, I use Mobil1 or K&N filters
Look into the center of the filter’s threaded adapter. You will see a disk with a rivet in its center. This is the relief valve. The filter will implode if it doesn’t bypass at high differential pressures.
how thick?
You should not have much fuel dilution. How much boost are you running? Mineral based multigrade oils revert to lower number with heat and age when the viscosity enhancer die.
I'm not sure all filters have this issue, I use Mobil1 or K&N filters
Look into the center of the filter’s threaded adapter. You will see a disk with a rivet in its center. This is the relief valve. The filter will implode if it doesn’t bypass at high differential pressures.
how thick?
01-26-09, 09:29 AM
#199
Racecar - Formula 2000
Originally Posted by Barry Bordes
Look into the center of the filter’s threaded adapter. You will see a disk with a rivet in its center. This is the relief valve. The filter will implode if it doesn’t bypass at high differential pressures.
01-26-09, 10:21 AM
#200
"Elusive, not deceptive!”