Synthetic Oil
05-16-2008, 10:30 PM
#2
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stupid questions and better safe then sorry.
If the engine had been serviced since first use with synthetic you would be fine.
Having most likely been on a steady diet of conventional oil,that is what it should be kept on.The agents in synthetic oil will remove the varnish like coating that builds up on the gaskets from years of use and the potential for leaks becomes an issue.
enjoy her it is a classic
ohlord
If the engine had been serviced since first use with synthetic you would be fine.
Having most likely been on a steady diet of conventional oil,that is what it should be kept on.The agents in synthetic oil will remove the varnish like coating that builds up on the gaskets from years of use and the potential for leaks becomes an issue.
enjoy her it is a classic
ohlord
05-17-2008, 04:52 AM
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I own several 126's, including a 300SE, among other older models, and have always used synthetic oil in them with excellent resuts. Many of them were running on conventional garbage before I bought them, and they responsed only positivly.
05-18-2008, 12:03 PM
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1996 W124 E320 Coupé, 1990 W124 300E twin turbo, 1991 W126 300 SE, 1984 Ford Capri 2.8i
From the Mobil site:
"Question: Switching to Mobil 1 in High-Mileage Cars
I have a 1991 Mercedes-Benz 350SD, and at the 135k-mile service, the dealership switched to 5W-40 synthetic oil. It has been using 15W-40 all along. Recently I purchased a 1995 Volvo 960 with 98k miles on it. I believe the previous owner was using 10W-30. I want to prolong the lives of both cars by using synthetic oil. However, two repair shop people had advised me that synthetic oil is good only if you start using it when the car is relatively new, and that I should not switch to synthetic oil when the car has more than 50k miles. If this is true, what's the reason behind it?
-- Elton Woo, Piscataway, NJ
Answer:
There is simply no factual basis to this myth. You can switch to Mobil 1 synthetic motor oil at any age or mileage and, as long as the engine is in good mechanical condition, you should reap all the benefits that you would experience in a new car. In fact, switching a car from mineral oil to Mobil 1 at higher mileage can help reduce engine sludge and other harmful deposits that may have accumulated over the years. That's why highly regarded companies such as Mercedes-Benz and Porsche recommend the use of Mobil 1. One thing you should be aware of it, however, is that your Mercedes diesel and your Volvo may require different viscosities of Mobil 1. Check your vehicle's owner's manuals for more information. "
_________________________________________
I've had no problem switching my 300 SE over to Mobil 1 at 130k; now at 145k with no leaks. My 300E twin turbo is now on 175k and has been on fully synth since new -- no leaks. I switched my E320 Coupé at 25k and it's now at 61k -- no leaks.
"Question: Switching to Mobil 1 in High-Mileage Cars
I have a 1991 Mercedes-Benz 350SD, and at the 135k-mile service, the dealership switched to 5W-40 synthetic oil. It has been using 15W-40 all along. Recently I purchased a 1995 Volvo 960 with 98k miles on it. I believe the previous owner was using 10W-30. I want to prolong the lives of both cars by using synthetic oil. However, two repair shop people had advised me that synthetic oil is good only if you start using it when the car is relatively new, and that I should not switch to synthetic oil when the car has more than 50k miles. If this is true, what's the reason behind it?
-- Elton Woo, Piscataway, NJ
Answer:
There is simply no factual basis to this myth. You can switch to Mobil 1 synthetic motor oil at any age or mileage and, as long as the engine is in good mechanical condition, you should reap all the benefits that you would experience in a new car. In fact, switching a car from mineral oil to Mobil 1 at higher mileage can help reduce engine sludge and other harmful deposits that may have accumulated over the years. That's why highly regarded companies such as Mercedes-Benz and Porsche recommend the use of Mobil 1. One thing you should be aware of it, however, is that your Mercedes diesel and your Volvo may require different viscosities of Mobil 1. Check your vehicle's owner's manuals for more information. "
_________________________________________
I've had no problem switching my 300 SE over to Mobil 1 at 130k; now at 145k with no leaks. My 300E twin turbo is now on 175k and has been on fully synth since new -- no leaks. I switched my E320 Coupé at 25k and it's now at 61k -- no leaks.
05-18-2008, 04:25 PM
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1989 W201 1999 W210
From the Mobil site:
"Question: Switching to Mobil 1 in High-Mileage Cars
I have a 1991 Mercedes-Benz 350SD, and at the 135k-mile service, the dealership switched to 5W-40 synthetic oil. It has been using 15W-40 all along. Recently I purchased a 1995 Volvo 960 with 98k miles on it. I believe the previous owner was using 10W-30. I want to prolong the lives of both cars by using synthetic oil. However, two repair shop people had advised me that synthetic oil is good only if you start using it when the car is relatively new, and that I should not switch to synthetic oil when the car has more than 50k miles. If this is true, what's the reason behind it?
-- Elton Woo, Piscataway, NJ
Answer:
There is simply no factual basis to this myth. You can switch to Mobil 1 synthetic motor oil at any age or mileage and, as long as the engine is in good mechanical condition, you should reap all the benefits that you would experience in a new car. In fact, switching a car from mineral oil to Mobil 1 at higher mileage can help reduce engine sludge and other harmful deposits that may have accumulated over the years. That's why highly regarded companies such as Mercedes-Benz and Porsche recommend the use of Mobil 1. One thing you should be aware of it, however, is that your Mercedes diesel and your Volvo may require different viscosities of Mobil 1. Check your vehicle's owner's manuals for more information. "
_________________________________________
I've had no problem switching my 300 SE over to Mobil 1 at 130k; now at 145k with no leaks. My 300E twin turbo is now on 175k and has been on fully synth since new -- no leaks. I switched my E320 Coupé at 25k and it's now at 61k -- no leaks.
"Question: Switching to Mobil 1 in High-Mileage Cars
I have a 1991 Mercedes-Benz 350SD, and at the 135k-mile service, the dealership switched to 5W-40 synthetic oil. It has been using 15W-40 all along. Recently I purchased a 1995 Volvo 960 with 98k miles on it. I believe the previous owner was using 10W-30. I want to prolong the lives of both cars by using synthetic oil. However, two repair shop people had advised me that synthetic oil is good only if you start using it when the car is relatively new, and that I should not switch to synthetic oil when the car has more than 50k miles. If this is true, what's the reason behind it?
-- Elton Woo, Piscataway, NJ
Answer:
There is simply no factual basis to this myth. You can switch to Mobil 1 synthetic motor oil at any age or mileage and, as long as the engine is in good mechanical condition, you should reap all the benefits that you would experience in a new car. In fact, switching a car from mineral oil to Mobil 1 at higher mileage can help reduce engine sludge and other harmful deposits that may have accumulated over the years. That's why highly regarded companies such as Mercedes-Benz and Porsche recommend the use of Mobil 1. One thing you should be aware of it, however, is that your Mercedes diesel and your Volvo may require different viscosities of Mobil 1. Check your vehicle's owner's manuals for more information. "
_________________________________________
I've had no problem switching my 300 SE over to Mobil 1 at 130k; now at 145k with no leaks. My 300E twin turbo is now on 175k and has been on fully synth since new -- no leaks. I switched my E320 Coupé at 25k and it's now at 61k -- no leaks.
05-21-2008, 07:54 PM
#6
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It changes all the time
Why do you want to start using synthetic? Having logged millions of miles on good old dino in my cars as well as client cars over the last 30 years at a fraction of the cost, I can think of only 4 reasons to use synthetic. Use synthetic if the mfg requires it. Use synthetic if you are constantly pulling heavy loads which does not include your mother-in-law in the back seat. Use synthetic to cross the burning sands like the Death Valley in the summer. Use synthetic in a diesel in extreme cold to aid in starting. If you understand cars, you don't even need synthetic in cold climates. As a case in point, I went skiing several years ago in Sun Valley, Idaho. It was -26 degrees the day we left. I was driving my trusty Toyota Celica. It's hard to beat a Toyota. It was a stick, so I left it in neutral which is what you do to keep the disc from sticking. I took the battery out and put in the bathroom sink filled with hot water. After it cooled, I filled it again. I put the fully charged battery back in the car. I started the car and let it run for a few seconds, depending on the oil on the bearings. I repeated this several times and finally let the engine run. I drove back to California and added many more miles to that great car. So if you want to p*ss away your money, go for it, but I think you are an idiot. Just the other day I was talking to a multimillionair. He came to this country from Portugal with $400. He said he would like to buy a roadster, but he could not see spending what a new one costs. He will write a check for an earlier version and buy another piece of property from someone in foreclosure who is trying to find someone to take over the lease on their BENZ.
05-22-2008, 06:08 AM
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1996 W124 E320 Coupé, 1990 W124 300E twin turbo, 1991 W126 300 SE, 1984 Ford Capri 2.8i
For the sake of a few extra $ per year, I use fully synthetic oil because, according to expert opinions and analyses, it is clearly a superior lubricant. As it lasts longer than dino and semi-synth, the few $ are even fewer than some imagine. For the turbo, it's required.
Last edited by RogerJones; 05-22-2008 at 06:11 AM.
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05-22-2008, 09:18 AM
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I drive a 1991 300SE
[I've had no problem switching my 300 SE over to Mobil 1 at 130k; now at 145k with no leaks. My 300E twin turbo is now on 175k and has been on fully synth since new -- no leaks. I switched my E320 Coupé at 25k and it's now at 61k -- no leaks.[/QUOTE]
wow that must be a fun car twin turbo omg.
wow that must be a fun car twin turbo omg.
06-01-2008, 11:40 PM
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1987 560 sec impala metalflake, over cream, or java.
OK, i cant keep quiet any longer. i have been a synthetic user since the begining of time. first in porsches, motorcycles anything air cooled. then in everything i owend. " AMSIOL " its been around for a long time. in the begining i used to get it from england i think? in a gal jug, ya no #,s just syn. oil. now it comes in all weights ect.the oil co.s tried to buy them out & squelch it but they held out. (thank goodnes ) the major co.s had to stop calling there oil synthetic, hence the birth of semy syn. now its starting again. ill alwas use amsoil just cuz if it wasnt for them we would not have the high quality we have in oils. just my 2 cents
