A point to also keep in mind is the title displayed in downstream search partners is sometimes 1-3 characters less before they show the elipses (....). So what you can see on Google may not show fully on their parners.
if you use your all main keywords and if they are using without a sense, you will be nearly penalized by google... we called this keyword stuffing :) so don't use all of your keywords in the page title.. use only target or site global keyword, it will help your website find in the google not spammed.
In the eyes of google, "it's" is a keyword. (87,000 guesses how I know this.) So, for that matter, is "word". And "that's". And "though". "Seen". "There's". (Also, inexplicably, "doesn" [sic]). My personal list also includes (transliterated) "amma" and "ammalu". Well, maybe google doesn't know that both mean "and".
Please do not overlook humans when assembling your titles. One site which shall remain nameless has a titling format by which all significant pages begin with the same 31 non-unique characters. (I counted.) This is amazingly un-helpful for the human glancing at a browser tab.
Frontloading keywords works with the reader who is reading left to right.
It should work in any case unless you're in an ancient browser. A script carries directionality information, so any truncated text will be truncated at the end, regardless of whether that's right or left. I just tested this quickly with a made-up document with long quasi-Hebrew title opened in multiple tabs. The text started at the beginning (right edge of available space) and the dotdotdot that marks truncation was on the left.
Google shows 69 Characters (Including Spaces) for Page Title. you can use all 69 keyword but it should make some sens. For Example, Title: Truck parts accessories Magnaflow Y, X pipe exhaust cut out air pump there are all keywords but making a sens.
As of my personal experience, There should be maximum three primary keywords are has to be in Title tags. I strongly recommend you to targeted unique keyword for every targeted web page and spend some time for URL mapping.
I suggest you try to keep your keywords limited to 2 or 3 but you must focus on choosing your keywords as they will decide the future of your website. This is because if the search engine fails to list your website then it will be very difficult to get audience. So my suggestion would be to follow SEO guidelines.
How many characters Google will display in a title does not depend on counting the characters - it depends on the number of pixels that are used in the width of the final display in search results.
So it's the pixel width and not the number of characters. I've seen tests using only the very narrow-pixel characters that managed to get 101 characters to display in Google.
Even if the original title tag doesn't fit, Google will cut out part of the tag and replace it with an ellipsis [a ...] to make it fit. Their choice of what part to display will include the important keywords from the original query phrase.
So there's no reason to force a useful title tag to fit into any arbitrary size. At the same time, packing a title with many keywords just to try to help your ranking is a very foolish idea, and it can lead to penalties rather than traffic.
[edited by: tedster at 1:29 am (utc) on Sep 30, 2012]