This is not always true.nissan2k2 said:any one above 4 bucks is a good rule. mobil 1 is good, valvoline is good. fram and purolator are the lesser ones, but still ok. basically, the more expensive, the better, its all up to you.
It does mean you change less.Xtrema said:This topic has been talked about before. Sythetic doesn't mean you can change oil less often, it's just a better quality oil.
But it's still oil that run through your engine expose to tiny dust particles and many chemical by-products from combusion. It gets polluted. You still should change in correct intervals, 6 months or 3000 miles to get rid of the harmful by-products.
If you want to save a couple of $, do it yourself or stick with convention oil.
I think it is the best as far as regular oil goes. I used it in my Motorcycles that get much hotter than the cars and It never foamed and did a great job.2k2altimasoon said:I just went over 800 miles on my car less than 1 week old.
My first oil change is free at dealership, but I went to O'Reilly's auto parts and they have 5qts of castrol oil+filter for $8.99. Willy is that good? So you would recommend just regular Catrol Oil?
Back in the day............... When Mobil One first came out, they said it could go 25,000 miles between oil changes. Now, I wouldn't try to get 25k out of synthetic, but certainly 7k/8k, or double conventional would be a reasonable amount.its jigga james said: