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Old 10-16-2011, 07:59 AM   #15
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To be honest, I think my Catalytic Converter has gone the way of the Dinosaurs. I've looked for one, but believe that with the Banks Powerpack conversion, it was trashed. I'll look again.
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Old 10-16-2011, 08:55 AM   #16
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Originally Posted by crazeevw View Post
To be honest, I think my Catalytic Converter has gone the way of the Dinosaurs. I've looked for one, but believe that with the Banks Powerpack conversion, it was trashed. I'll look again.

Their usefull life is about 100K. Even less on ones from that era. Its been exposed to plenty of zink and other detrimental chemicals in its early life.

I believe in the principal behind synthetics and run them in my newer engines that were designed and manufactured to tighter tollerances to take advantage of less friction from thinner films. To me its a matter of cost. I can do a $50 oil change with Rotella Triple Protection 15W40 or $150 with synthetic. (3 gallons) They claim a 1 to 2% increase in milage with synthetic. That would save about $20 in fuel at a cost of $100. I think the advantages of more frequent oil changes in an engine that sits most of the time outweigh the advantages of synthetics that are changed less often. Again, my opinion.
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Old 10-16-2011, 09:37 AM   #17
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Derek,
I'm not an engineer and don't pretend to be one, but I did race for quite awhile. I agree with the pro syn guys. Any major brand is good...I've used Royal Purple and now use Mobil 1 (Walmart has it cheap) and had good experience with all. The bottom line is that it's all oil, even the syn stuff comes out of the ground. I change mine every 7 to 10 thousand miles. I've had it tested and changing it more often is fine, but a waste of money. The real question is what weight...even here on the Redneck Riviera it can get stupid cold...down to 20 or below occasionally. I use 10-40W Mobil1 High Mileage on my 130K '87 345...oil pressure is good, temp runs about 210...I'm happy. Look at it this way, any good syn oil today is tons better than what they ran in '87.
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Old 11-06-2011, 09:26 PM   #18
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Don't Use Synthetic OIL !

"Beware of synthetic oil, it can do terrible things to you and your beloved TV and MH. It will not only leak out of your engine faster than you can put it in, but it will also cause your oil filter to clog and implode, dumping debris and dirt into your lubrication system. It also will make every part of your TVMH permanently slippery because of its linear molecular chain dispersion action. Then it will leak onto your steps causing it to retract automatically, dropping you on the ground! But that's not all...

Synthetic oil will round off your gears and spin your bearings. It will also splatter onto your seat causing you to fall off in the apex of a turn. Synthetic oil coats your sight window and your timing window with a whitish pro-emulsification additive that is both non-removable and highly corrosive.

Synthetic oil will completely leak onto the ground overnight and your dog will drink it and die. Synthetic oil will wear out your tires and make your battery leak. It will give you the desperate need to urinate after you put your thermals on and then jam your zippers shut. It will contaminate your gasoline causing your TVMH to stall on railroad tracks and accelerate uncontrollably near police cars. It will make it rain during rallies and on weekends. It will lubricate your timing belts causing them to jump teeth and break your valves to bits.

Synthetic oil chemically weakens desmodromic valves and causes the clearances to change every six miles. Then it melts the black soles of your shoes right before you walk across your new carpeting. While riding past groups of attractive women it will cause your steering grips to slip off at the same time so you smash your horn button with the bridge of your nose causing it to stay on. It also causes you’re a-arms to crack, your studs to break, and your rotors to warp, and then it voids your warranty by changing your odometer reading to 55,555. It also dries out your water tank and wets your black water. It makes your clutch slave cylinder seal fail in the heaviest traffic on the hottest day of the year while putting an angry wasp in your glove box for good measure.

Synthetic oil hides your ½” socket and puts superglue in your key holes. Synthetic oil will scratch your polished areas and make your solar panels shrink two sizes the night before travel. Synthetic oil stole your neutral and sold it to the Chinese for $1.25. Synthetic oil will make you grow a tail. Synthetic oil will write long crazy e-mails to your Internet friends and then sign your name at the bottom!"
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Old 11-07-2011, 06:16 AM   #19
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Old 11-07-2011, 09:03 AM   #20
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I would run Mobil 1 15W-50 in it. If it burns a lot of oil I would go with a cheaper mineral based oil. If you really want good oil facts go to bobistheoilguy.com and join their forums. I run M1 10W30 in my vehicles. I am starting to use their high miliage blend which is highly recommended on the Bob sight. I would not run 5W30 crap in it unless you want to replace it soon. Stay with 20W-50 and stuff like that if you go mineral.

Perry
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Old 03-22-2012, 08:45 AM   #21
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Originally Posted by klattu View Post
"Beware of synthetic oil, it can do terrible things to you and your beloved TV and MH. It will not only leak out of your engine faster than you can put it in, but it will also cause your oil filter to clog and implode, dumping debris and dirt into your lubrication system. It also will make every part of your TVMH permanently slippery because of its linear molecular chain dispersion action. Then it will leak onto your steps causing it to retract automatically, dropping you on the ground! But that's not all...

Synthetic oil will round off your gears and spin your bearings. It will also splatter onto your seat causing you to fall off in the apex of a turn. Synthetic oil coats your sight window and your timing window with a whitish pro-emulsification additive that is both non-removable and highly corrosive.

Synthetic oil will completely leak onto the ground overnight and your dog will drink it and die. Synthetic oil will wear out your tires and make your battery leak. It will give you the desperate need to urinate after you put your thermals on and then jam your zippers shut. It will contaminate your gasoline causing your TVMH to stall on railroad tracks and accelerate uncontrollably near police cars. It will make it rain during rallies and on weekends. It will lubricate your timing belts causing them to jump teeth and break your valves to bits.

Synthetic oil chemically weakens desmodromic valves and causes the clearances to change every six miles. Then it melts the black soles of your shoes right before you walk across your new carpeting. While riding past groups of attractive women it will cause your steering grips to slip off at the same time so you smash your horn button with the bridge of your nose causing it to stay on. It also causes you’re a-arms to crack, your studs to break, and your rotors to warp, and then it voids your warranty by changing your odometer reading to 55,555. It also dries out your water tank and wets your black water. It makes your clutch slave cylinder seal fail in the heaviest traffic on the hottest day of the year while putting an angry wasp in your glove box for good measure.

Synthetic oil hides your ½” socket and puts superglue in your key holes. Synthetic oil will scratch your polished areas and make your solar panels shrink two sizes the night before travel. Synthetic oil stole your neutral and sold it to the Chinese for $1.25. Synthetic oil will make you grow a tail. Synthetic oil will write long crazy e-mails to your Internet friends and then sign your name at the bottom!"
Love This!
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Old 03-23-2012, 07:46 PM   #22
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To be honest, I think my Catalytic Converter has gone the way of the Dinosaurs. I've looked for one, but believe that with the Banks Powerpack conversion, it was trashed. I'll look again.
I think you're right about the Banks Power Pack...I have it and my cat is gone, just enormous exhaust pipe coming out of the headers. You could register your Moho at my address, up here on the Emerald Coast. We don't need no stinking converters...

Bill
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Old 03-23-2012, 08:01 PM   #23
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I'm also a big fan of Rotella-T, and used to use 15w40 exclusively in my Defender. Those old Rover 3.5/3.9 V-8's were very dirty running engines due to a design flaw in the head gasket design, and the additional detergents in the Rotella sure came in handy.

Personally, I wouldn't worry about synthetic at this point. The main gripe I have with synthetic in older engines is that if you have any leaks, it gets expensive to keep topping the stuff off. That, and if your engine is already approaching time for a rebuild, then you won't benefit from the advertised extended engine lifespan.

-Hans
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