regular oil to synthetic
I have moved over completely and not gradual
I have read about how synthetic is not good on a car that ran Dino all its life
And it leads to leaks etc
But I have migrated 4 car over the years to synthetic with no issues at all
I have read about how synthetic is not good on a car that ran Dino all its life
And it leads to leaks etc
But I have migrated 4 car over the years to synthetic with no issues at all
The seal issue only applies if you are already leaking oil on an old worn motor.
http://auto.howstuffworks.com/switch...hetic-oil1.htm
The biggest benefit of synthetic on the LS is for extended oil change intervals. I change my oil every 8 - 9k miles with Mobile 1 EP and an oversized filter. It takes longer to break down. Honestly, I could probably go to 12k intervals but I don't like to push the oil this long. I also run Mobile 1 EP in my WRX but can't go this long due to oil dilution. Nature of the engine. Great oil in my opinion. Pennzoil Ultra is also a highly rated oil but harder to find for a good price.
http://auto.howstuffworks.com/switch...hetic-oil1.htm
The biggest benefit of synthetic on the LS is for extended oil change intervals. I change my oil every 8 - 9k miles with Mobile 1 EP and an oversized filter. It takes longer to break down. Honestly, I could probably go to 12k intervals but I don't like to push the oil this long. I also run Mobile 1 EP in my WRX but can't go this long due to oil dilution. Nature of the engine. Great oil in my opinion. Pennzoil Ultra is also a highly rated oil but harder to find for a good price.
Last edited by Lavrishevo; Feb 8, 2016 at 04:04 PM.
I forgot to mention that synthetic lubricates faster on cold starts. This is also major benefit over dino. Considering 90% of engine wear happens on cold starts this good to have.
Last edited by Lavrishevo; Feb 7, 2016 at 05:40 PM.
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Racer
Joined: Jan 2011
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From: AZ
Supposedly, when Mobil 1 was first introduced to the market they really put a lot more detergents in their synthetic blends and this led to problems with leaking as it sort of blasted all the internal buildup around the seals. That's where the "don't switch from regular to synthetic" stories came from. It could be urban legend, but that's the story I've heard.
I think any car made in the last few decades can go with modern synthetics with zero issues. The only cars I would only use conventional oil would be something like a classic car when they used things like cork gaskets that may be on their way out.
I think any car made in the last few decades can go with modern synthetics with zero issues. The only cars I would only use conventional oil would be something like a classic car when they used things like cork gaskets that may be on their way out.
A quote from the article linked. It is interesting info:
Like many myths, this one is based in fact. Early synthetics were made of esters, which were harder on seals, especially those made of neoprene. However, synthetic oils have come a long way since the early 1970s, and they're much nicer to delicate seals. But while synthetic oil won't create a leak, it will find one. Its streamlined molecular structure has no mercy for cracked or otherwise marginal seals.
Last edited by Lavrishevo; Feb 9, 2016 at 10:19 AM.
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