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I've always heard that over tightening a gasket can lead to leaks in the future but I've never been told why this is. Would someone explain to me what happens when a gasket is over tightened? Does it make a difference if it's a rubber gasket vs metal vs cork? How about if it's two flat surfaces...

OK, another 20 weight oil report over 10K on a not new vehicle with history. 8 samples of 7K+ miles, 5 of over 9K+ miles, 94K miles on car. New report on the right. Code: Date out: 3/03 6/03 11/03 11/03 5/1/04 1/28/05 7/4/05 8/6/06 1/21/07 10/13/7 8/17/08 Lab: OG OG OG Black...

Ok once again. I thought people would be interested in how a 20 weight oil would perform with long intervals over a long period of time under a more agressive than average driver. 7 samples of 7K+ miles, 4 of over 9K+ miles, 85K miles on car. New sample is on the right: Code: Date out...

New sample on right. Code: Date out: 3/03 6/03 11/03 11/03 5/1/04 1/28/05 7/4/05 8/6/06 1/21/07 Lab: OG OG OG Black Black Black Black Black Black Brand: Chevron M1 M1 M1 M1 M1 M1 M1 M1 Supreme Weight: 10w30 5w30 5w30 5w30 0w20 0w20 0w20 5w20 5w20...

It has been a while and I missed a sample on the last change interval. Here it is, newest on the right: There was more traffic than normal in this interval but still 50% traffic, 50% highway. The gearing in my car places my engine at 4000rpm, probably not the easiest of rpm range. No auto-x in...

The latest report, most recent on the right: As you can tell my MPG of this round was much higher than the last, my driving went to mostly highway mileage blended with a lot of traffic. The gearing in my car places my engine at 4000rpm, probably not the easiest of rpm range. No auto-x in this...

Assuming that the best equipment is more likely to give the best results the first time. What machine should I ask my local auto shops if they use?

The numbers do all of the talking, new numbers are on the right My drving conditions are close to last time but much more city driving as can be seen in my mpg for this run, 25.9 mpg (27/30 epa. I do show my age sometime (21) and drive in central California where I can go 300+ miles in 100+...

I am still very new at this, any information, insight or general comments are appreciated. I wanted to compare 5w30 and 0w20 myself:-) I do show my age sometime (21) and drive in central California where I can go 300+ miles in 100+ heat for 4+ hours with my engine doing 4000+ rpm doing 80-90...

I thought I would give Blackstone labs a try. I also Wanted to see the difference in labs. Overall I think with typical error the results are pretty comparable. The only issue being the higher viscosity rating. Currently I have M1 0w20 in the car (what Honda wants), and plan to run it for the...

Well I finaly got around to cut open a Toyo Roki filter, but do to my budget constraints I cut open a used filter. I really wanted to see the difference between the Hodna Fram filter and the TR. Honda part number 15400-PLC-004. The Toyo Roki made Honda filter before pics/discussion. The pics...

I recently went to my local honda dealership to take advantage of over the counter parts sale they had. I asked for a non Fram made in Canada filter. The tech said he would go look and brought me back a few Toyo Roki filters with a part number of 15400-PLC-004. After looking at them to make sure...

I am still very new at reading UOAs, so I thought that some of you veterenans can help me out. Test performed by MTM Industrial 10w30 Chevron Supreme --5w30 Mobil 1 Miles on unit: 10170 --15056 Miles on oil: 5072 --4886 Filter: Honda Fram --Honda Fram Fe - 8 --2 Cr - 1 --0 Al - 8 --5 Cu - 15...

I just got my oil analysis on my oil back and though that some of you might like to look at the numbers. The oil was changed at the dealership so I am not sure what the exact type of oil it is. I was told by someone that they though it was 10w30 Chevron Supreme. Oil: I think 10w30 Chevron...

I am wondering if anyone has been able to find the new Mobil formula. I know that the oil is supposed to be released this month, but have yet to find any on store shelves. I question the employees when they expect to get the oil in and get the identical response that my dog gives me when I talk...

I have been trolling this board lately and trying to learn as much as possible. I drive a 2002 Honda Civic Si, as I am sure you know the owners manual calls for 5w-20. I was first skeptical about this weight. It sounds as though this board is beginning to accept this weight and after seeing...