5-20 royal purple

 

For cooking I mainly use vegetable oil.

 

For a while I used royal purple as well but I made the switch to Idemitsu.

 

royal purple as well. But as long as you change it often enough, it really doesnt matter.

 

5w30 or 5w20 ??

 

5w30 is what mazda recommends for the renisis in every country but the US. They went to 5w20 to pass emission standards. Ask any of the guys who actually work on the motor and they'll tell you that 5w20 is too thin.

 

alright thanks!

 

Lies, 5-20 is not too thin, and it had nothing to do with emissions standards directly, same as the undersized tires, it was for fuel economy

This guy has an actual site that is his, but this forum entry includes all of the chapters, read and be educated

http://www.ferrarichat.com/forum/sho...d.php?t=136052

 

so i will get lower feul econmy with 5w30?

 

you won't notice a change in fuel economy, unless you went with like a 60 straight weight racing oil. Maybe if you were a perfect driver and only drove on flat land at sea level would you notice any differences in fuel economy between 0w-20 and 5w-30.

The actual oil weight is important to a certain extent, depending on your driving style and the outside conditions (weather/temperature), the most important is the oil change frequency, motor oils have a lot of additives designed to clean the engine and remove/retain contaminants, after a while these "conditioners" become spent, unable to retain contaminants and clean the engine and become harmful to your engine. Changing your oil about every 5k is smart, 3k seems a little excessive but the more the better if you can afford it. I prefer royal purple because it is highly regarded as one of the best full synthetics, you cant really do wrong with Amsoil, Mobil 1, redline, neo synthetic or valvolines full synthetic. This link describes the differences between some of the better oils. With the rotary engines higher running temps you definitely want to go with a oil that has a high flash temperature and a high "high shear, high temperature" rating. Royal purple is not included in this round of testing but it is between amsoil and mobil 1


http://forums.maxima.org/1056918-post10.html

 

So it's because you want to be able to ride the clutch for your parking lot burnouts.

I kinda like that idea actually. I'll have to see how yours feels some time. Maybe I'll get one when my OEM one goes.

 

New Stuff

 

tsk tsk.. handing out incorrect information to people asking for help. Saying that oil weight has no noticeable effect on the engine is just stupid. The oil is used in our engine like few others and needs to be not only changed religiously but needs to be changed to what the ENGINEERS at mazda called for... not what they're PR and marketing department decided on.

 

The quality of oil you use, conditioners, HT/HS and flash ratings are far more important than the difference in weight(multi grade oils from 5w20 to 10w-40), especially if we are talking about the difference of 5w-30 and 5w-20. The opinion that 5w-20 is too thin, is just that, an opinion, one of which I might add engineers disagree with each other on quite a bit. There are many other variables that go into the choice of an oil, application and environment are just two. Also, I didn't say that "oil weight has no noticeable effect on the engine" I said that he would not notice a difference in fuel economy and that oil weight matters to a certain extent, to go into more detail, sure you could choose the right oil weight, but if you get an oil with poor additives and low HT/HS ratings you might as well change your oil and put powdered concrete in the engine because the outcome will ultimately be the same. I do agree that the oil in our engines is used uniquely more so because of the oil injection system for seal lubrication. Lastly, good luck figuring out what areas were influenced more by the PR department or the engineers at Mazda, its a business, they will do whats necessary to make the most money, most of that change your oil every 3000 miles BS was backdoor marketing tactics in the early 90's by the one stop oil change companies looking to increase profits, read about it, its interesting and funny.

Though if it hasn't been done already, it would be cool to see some lab analysis on different oils in the renesis at different mileage intervals, 500 miles, 1000 miles, 3000 miles, and 5000 miles, to actually see the level of contaminants and a true recommended oil change interval, also, which oils perform the best and last the longest, specifically in the renesis.

 

All valid points, that's why I switched to Idemitsu (specifically formulated for rotaries)

 

ok.. zack's got some sand in his vagina so i'll leave it alone for now. Next meet I'll have someone to argue with the whole night.

 

What's better for bruschetta, vegetable oil or olive oil?

 

Okay, after saying that, I will say this, I would much prefer someone prove me wrong than to just say I'm wrong and give no evidence to back it up, short of what I already mentioned. It bugs me even more that he interpreted what I said about the engine oil incorrectly to seem like I was generalizing that it doesn't matter what kind of engine oil you use.

I have done quite a bit of research on the subject and had some good information to share that is based off of facts. Matt hasn't really said much other than I am wrong because the "ENGINEERS at Mazda Japan" recommend 5w-30, with the knowledge I have and the knowledge Matt has, to say I am wrong, and you expect me to not be at least a little offended? Maybe I am taking it too far, I don't really care. There's really no argument to be had here, intelligently because this is still very much an opinionated argument not necessarily one that can be won, but more so, because the sides of information and debate aren't equal at all, at least not yet, I am hoping Matt will provide some intelligent information that challenges what I have stated, I do enjoy a good, even argument.

Oh well....

 

don't get too excited guys. I appreciate the links Zach, I bookmarked them..

 

It looks like Amsoil is the best oil in that group.

 

I'll stick to my 5w30 RP. Only because it looks cool when i spill it.

 

Olive Oil

What I use is lemon infused olive oil which you can make yourself real easily. But if you do use lemon infused olive oil, mix it about a 1:4 ratio with regular olive oil, the lemon overpowers the taste of the tomatoes pretty easily.

 

I like sour stuff, so I may do 1:3. Have you ever tried it with lime juice?

 

haven't tried it with Lime Juice

Word on the street Royal Purple 5W10 works great tho.

It's not so much that 1:3 is too sour, but you just can't taste the tomatoes anymore.

 

I'm just giving zach a hard time.. and the sandy vagina line always makes me laugh.

There is a ton of debate on the best oil for the renny.. but having seen vids and photos of people who used 5w20 and 5w30.. the 5w30 engines always have shown less wear after 50k plus miles then those with lesser weight oils.