synthetic oil

[S13 Passion]

im thinking about switching to synthetic oil on my next oil change.  the only thing i can think of thats good is that it can go for 10,000km.   what else is beneficial from synthetic?  it does clean your engine and allows you to rev higher right?

[gtfour43]

I dont know if it allows you to rev higher but I do know one thing. I took apart a customers engine once and he used nothing but Mobil 1 synthetic since he broke in the engine and it looked like brand new in there. The car had 130,000 miles on it already and it looked like some engines with 10,000 miles. I was shocked when I looked inside the engine. He usually changed his oil every 5,000 miles too not the normal 3,000 like with regular oil. Ever since I saw that I used only Mobil 1 in my cars. I also noticed that his car didnt have the usual oil leaks like other cars with that much mileage did. I think it also helps prevent the seals from hardening up and leaking. <img src="http://www.zilvia.net/f/iB_html/non-cgi/emoticons/thumbs-up.gif" border="0" valign="absmiddle" alt=':thumbsup:'>

[S13 Passion]

nice... so it like gets rid of carb buildup and shit like that?

[DSC]

Oil Research (http://www.zilvia.net/f/cgi-bin/ikonboard.cgi?act=ST;f=1;t=8298) <img src="http://www.zilvia.net/f/iB_html/non-cgi/emoticons/thumbs-up.gif" border="0" valign="absmiddle" alt=':thumbsup:'>

[my240likenoother]

i have tryed syn. in my 240 one and fealt like it lost power and from what i heard ower moter is made to run a a thicker oil that other cars unles you have 2 cams and i dont have muck knolage about that

[gtfour43]

My240 you are right. Older high mileage cars need thicker oil and unfortuneately synthetic doesnt come in thick weights. I used 5w-30 in my brand new honda engine and it was fine. After 3,000 miles it was still full. I tried running the same oil in my gf's car with 50,000 miles and it was a quart low within a month. I use 10w-30 for cars with more mileage cause its thicker and doesnt burn as easily.