Last post on Sep 26, 2011 at 6:42 AM
You are in the Maintenance & Repair
What is this discussion about?
#1301 of 1320 Re: What is being changed? [Mr_Shiftright]
Mar 25, 2010 (6:08 pm)
What's with the return to cannister oil filters anyway?
Back in the late sixties, as a kid working in a gas station some of the older cars used these and we hated them. They were messy to change and if you didn't get all of the o rings and gaskets lined up just right, they would leak and we would have to take them back apart.
Now, these miserable things are coming back on quite a few cars I hear?
What could the reasoning be for this?
#1302 of 1320 Re: What is being changed? [isellhondas]
by MrShift@Edmunds HOST
Mar 25, 2010 (6:39 pm)
Safety for the engine. On a spin on filter, the only thing holding it to the engine is the pressure exerted on the gasket. If the gasket fails, the filter can just spin itself loose. Also, modern engines operate at pretty high oil pressures.
All in all, I think cartridge filters are a good idea. A bolt usually holds them on.
And yes, oil filters fall off and they can be blown off, too.
If you think about the number of crappy, off-brand oil filters for sale, having to depend on the gasket of that type of discount-house filter is pretty risky.
#1303 of 1320 Re: What is being changed? [Mr_Shiftright]
Mar 25, 2010 (6:50 pm)
Makes sense, I guess except in all of my time around thousands of shops I've never heard of an oil filter spinning itself loose or falling off but I'm sure it can happen.
Maybe I shouldn't have thrown away my old suction gun?
#1304 of 1320 Re: What is being changed? [isellhondas]
Mar 26, 2010 (5:15 am)
Besides what Shifty said, I think it also has to to with the environment. With the cartridge filter, all of that perfectly good steel is thrown out, along with a lot of oil that can't be extracted (unless the filter is crushed flat first). With the canister filter, you don't throw away metal, and it's easier to extract the waste oil before disposal.
#1305 of 1320 Re: What is being changed? [isellhondas]
by MrShift@Edmunds HOST
Mar 26, 2010 (6:57 am)
Oh if you cruise the forums here, you'll hear occasional stories of oil filters coming loose---often human error, but you know what Mother Nature tells automotive engineers: "you provide the opportunity to make a fatal mistake, and I'll provide the person to do it"
#1307 of 1320 Re: EXPERT ADVICE REQUESTED ASAP FERRARI OIL LEVELS AND WEIGHTS [355f1fun]
May 11, 2010 (7:26 pm)
Hi, I just wanted to add that the previous post said that overfilling may or may not mean anything. I would have to disagree because overfilling the oil pan with oil will cause the oil to contact the crankshaft when the engine is running. Which would cause the crank to whip the oil up like scrambled eggs. Which would lead to low oil pressure which can seriuosly damage the engine. Just thought I add that because I hate to see your Ferrari needing a new engine. Also I like to tell you that the W in for example 5W30 means winter not weight. Which basically means that when the oil is hot the viscocity is 30 and 5 when cold in simple terms.
Hope you get her fixed
#1308 of 1320 Re: EXPERT ADVICE REQUESTED ASAP FERRARI OIL LEVELS AND WEIGHTS [mbowen1989]
May 12, 2010 (2:27 am)
"I would have to disagree because overfilling the oil pan with oil will cause the oil to contact the crankshaft when the engine is running. Which would cause the crank to whip the oil up like scrambled eggs."
That depends entirely upon the engine and the clearance between the typical top level of the oil while the engine is running and the bottom arc of the crank and rods, and that is IF the engine in question uses a wet sump arrangement. Said another way, some engines will whip the oil, otherss will not.
"Which basically means that when the oil is hot the viscocity is 30 and 5 when cold in simple terms."
Ummm, no. What the grading numbers mean is that when a multi-grade oil is cold, the oil flows as a straight-weight oil of the first number would flow when cold, and when the oil is warm, it will only thin out to the point where it will flow as a warm straight-weight oil of the second number will flow when it too is warm.
As for "W" standing for "Winter", that is something of a misnomer as "Winter" really doesn't have much to do with it; the"W" is a hold-over from a very early SAE J300 oil specification.
#1309 of 1320 Re: EXPERT ADVICE REQUESTED ASAP FERRARI OIL LEVELS AND WEIGHTS [mbowen1989]
by MrShift@Edmunds HOST
May 12, 2010 (6:27 am)
That oil churning is called "cavitation". It can be a definite problem, you are correct, but probably not with 1/2 qt or even 1 qt overfill. You'd need to really load 'er up in the oil pan.
Feb 18, 2011 (1:15 pm)
ref 11Mustang v6: Took the car in for the first oil change at 1100 miles primarilly to dump any casting residue, chips or other unwanted junk. Ford dealer is now mandating an oil supplement with oil change. Is this a Ford endorsed proceedure or just something the local Ford service department thought up to boost the profit on the oil change??? thanx TG