Thoughts on synthetic oil

[Husker]

[quote=Northern300c;692378]1.) Our tires are not a 35psi based tire. They are 30 psi for the car, and 32psi for the tire manufacturer. No where does any where state that we have a 35psi base tire.

2.) WHO THE HELL HERE DRIVES OVER 100MPH GOING DOWN THE HIGHWAY!!!![/quote]
And get 20 mpg ...

[II kings 9:20]

Originally Posted by Chase300

One last thing on this synthetic discussion you all may know or maybe only some are aware of.
The 300C comes from the factory with synthetic oil in the transmission and rear end. Mopar ATF+4 is a synthetic oil as is the 75W140 mopar rear diff oil.

The Mopar 75W140 rear diff oil is also the world's most expensive oil....its around $25/qt.!!! Redline is 1/2 the cost!

Not quite, Shell Helix Ultra for the Enzo (also MB spec 229.5 for my S430) is $60/qt!

The 300C 5speed tranny is shared with my 2000 S430 which uses synthetic "Mercedes" lifetime transmission fluid which never needs service. Of course I changed mine last year along with the filter. Funny a tranny that never needs service has a replaceable filter, pan gasket, and new fluid readily available, sounds like marketing to me.

I don't know if the Mopar ATF is the same as the MB ATF. Amsoil makes a universal ATF, NE1 here got balls enough to use it and report back?

[kevenj]

Originally Posted by Northern300c

Royal Purple is mostly Group 3 with only a small portion that is Group 5 as an additive, but it is not the basestock.

That is Pure Bullshizzle; as usual you have absolutely no idea what you are talking about. You must get joy out of arguing with people. Royal Purple is in fact a PAO synthetic oil.

[chuckkent]

Ditto....I have never seen anyone get so upset over nothing...I think he needs some Prozac...but he thinks he is a website police so be kind..very anal about things....So far I have identified a half dozen members he's attacked....then when he gets caught here comes the weaseling!!!!

[Northern300c]

Originally Posted by kevenj

That is Pure Bullshizzle; as usual you have absolutely no idea what you are talking about. You must get joy out of arguing with people. Royal Purple is in fact a PAO synthetic oil.

Show proof and back off bud and stop acting like I was being snotty when I wasn't. I offered a counter point based on what I knew from Here.

Bob Is The Oil Guy - Powered by Motor Oil

Both Mobil1 and Royal Purple used to be Group 5 and now are mainly Group 3 oils with only a small portion being Group 5.

Mind you, in the case of Mobil1, they are all mainly pure Group 3 oils now.

So please, stop being so hostile when all we are talking about is the Group 3 designation of a synthetic oil.

[Northern300c]

Originally Posted by chuckkent

Ditto....I have never seen anyone get so upset over nothing...I think he needs some Prozac...but he thinks he is a website police so be kind..very anal about things....So far I have identified a half dozen members he's attacked....then when he gets caught here comes the weaseling!!!!

Oh stop kissing everyone's azz. You are the minority here and people can't stand your lies and cheap BS.

I never attaked kevenj, I just stated a different Group of oils. Is that an attack or are you trying to lie to drum up some support for your sorry bag of automotive knowledge crap. I think you are desperately trying to kiss for anyone to be on your side.

I have a page full of PM's where people thanked me for quashing your BS ignorance in two threads.

Just because I set your ignorant azz straight or have a different view on factual ideas, doesn't mean it is an attack. So stop trying to rile up the retirement home in your favor.

[kevenj]

Originally Posted by Northern300c

Oh stop kissing everyone's azz. You are the minority here and people can't stand your lies and cheap BS.

Actually Northern, it is YOU who is the minority here. You treat everyone here like they are your child, or your dog or something. Hell even when you are right, you make your points in such a way that you alienate everyone. Nobody likes a pompous know-it-all; especially a pompous know-it-all who doesn't know $hit from shinola.

Oh and skip the prozac; you just need to smoke a bowl and chill; this in an internet car forum, it's not real life! Don't get so worked up over nothing.

Ok I'm done now; respond if you must (and I'm sure you will) but I will simply ignore you from now on, unless your response (after rationally thinking about it) is to apologize to everyone here that you have treated like crap.

[chuckkent]

To elaborate a little on a 35 psi tire if you interpolate the 35 to a 30 or 32 psi tire you have to drag the speeds down in the chart. Ford I know for sure used to recommend adding 4 psi to the tires for sustained driving over 75 mph. As far as driving over a 100 mph....lots of our member do that even up to 160 mph. I would strongly recommend higher tires pressures if you are going to those extremes. Again these are things different mfrs. have recommended over the years. I do not dispute for maximum comfort and reasonable traction the door sill pressure are the law. As a member who has put over a million miles on company and private cars I have experienced extra tire life and better gas mileage with the tires inflated to around 35 psi. At least in our area the tire stores will recommend 35 to extend life if that is one of your goals. If you'll notice what the tires sites recommend is that the worst thing for a tire is to be under inflated and not over.

My whole premise on oil was that in my opinion paying much more than $4 or $5 dollars a quart for oil and about the same for a filter has diminishing returns.. example $10 a quart oil is not twice as good as $5 a quart. I can sort of understand paying $100 in Australia, UK or maybe Canada for a oil change but not here in the USA. At least not yet....

[Northern300c]

Originally Posted by kevenj

Actually Northern, it is YOU who is the minority here. You treat everyone here like they are your child, or your dog or something. Hell even when you are right, you make your points in such a way that you alienate everyone. Nobody likes a pompous know-it-all; especially a pompous know-it-all who doesn't know $hit from shinola.

Oh and skip the prozac; you just need to smoke a bowl and chill; this in an internet car forum, it's not real life! Don't get so worked up over nothing.

Ok I'm done now; respond if you must (and I'm sure you will) but I will simply ignore you from now on, unless your response (after rationally thinking about it) is to apologize to everyone here that you have treated like crap.

Sorry, but I am not going to start mud-slinging with you. You are just out to pick a fight.

[II kings 9:20]

Originally Posted by chuckkent

To elaborate a little on a 35 psi tire if you interpolate the 35 to a 30 or 32 psi tire you have to drag the speeds down in the chart. Ford I know for sure used to recommend adding 4 psi to the tires for sustained driving over 75 mph. As far as driving over a 100 mph....lots of our member do that even up to 160 mph. I would strongly recommend higher tires pressures if you are going to those extremes. Again these are things different mfrs. have recommended over the years. I do not dispute for maximum comfort and reasonable traction the door sill pressure are the law. As a member who has put over a million miles on company and private cars I have experienced extra tire life and better gas mileage with the tires inflated to around 35 psi. At least in our area the tire stores will recommend 35 to extend life if that is one of your goals. If you'll notice what the tires sites recommend is that the worst thing for a tire is to be under inflated and not over.

My whole premise on oil was that in my opinion paying much more than $4 or $5 dollars a quart for oil and about the same for a filter has diminishing returns.. example $10 a quart oil is not twice as good as $5 a quart. I can sort of understand paying $100 in Australia, UK or maybe Canada for a oil change but not here in the USA. At least not yet....

MB recommends adding +4 psi if going over 100mph. Low pressure results in heat, heat results in tire failure, tire failure at over 100mph results in a trip to the boneyard.
While there is no prrof that $10 oil is better than $5, it is well established that $5 oil is better than $2.50 oil. Again, in the dead of winter do the outdoor test for yourself. My car is garage kept too but not for the 8 hours at work or the 3 hours at the mall, or many other times whrer the engine never warms up and is in sub zero temps. This is where the $5 oil is worth it. As stated, this is real but in a practical sense may not mean anything given that my dad NEVER pays extra for synthetic and routinely runs his cars well past 150K. All the nice photos showing wear with all oils except the RP are all well and good an may make a difference at 600K but for most we'll never have the car long enough to know.

No one has responded to my point of all the very high mile MB Diesels (and others past 250K) that got there on conventional oils not using a drop of synthetic oil. My Brother's F150 at 247K is another good example.

As one who uses synthetic only, I feel better going a full year or 7.5K (sooner on Hondas b/c of a small filter) I know that synthetic is better. My buddy has an RX 300 with 240K on regular oil at 5K intervals and it runs as new. Think about it, most of us know many people with high miles on conventional oil. This is all very interesting discussion about preference and some facts that likely won't matter in terms of longevity during our ownership.