Royal Purple?
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Royal purple is a very nice synthetic oil, better be for the better part of $8 a quart. The term better is quite a broad statement but in oil less friction = better.
Along with less friction comes less heat equaling more durability of parts, less wear, more gas milage, more hp, more tq. It just makes your engine happier.
As with any newer oil, oil change intervals are longer, given you don't have massive blow-by, to easily 5000-7500 even 10k miles or whatever you feel safe with.
A friends dad uses Amsoil (Big $$$) in his 02 Ford turbo-diesel and changes his filter every 7500 miles and oil every 15000. Mind you that's 22ish quarts at some $10 a quart.
And it's been proven that synthetics are far superior to petrol based oils for "slickness". They even had a segment on one of the Powerblock shows on it. They gained something like 8hp on a 400hp engine from just an oil change.
But to stop ranting and answer your question I think all good synthetics (Mobil 1, Redline, Royal Purple, Lucas) will give you similar results.
Along with less friction comes less heat equaling more durability of parts, less wear, more gas milage, more hp, more tq. It just makes your engine happier.
As with any newer oil, oil change intervals are longer, given you don't have massive blow-by, to easily 5000-7500 even 10k miles or whatever you feel safe with.
A friends dad uses Amsoil (Big $$$) in his 02 Ford turbo-diesel and changes his filter every 7500 miles and oil every 15000. Mind you that's 22ish quarts at some $10 a quart.
And it's been proven that synthetics are far superior to petrol based oils for "slickness". They even had a segment on one of the Powerblock shows on it. They gained something like 8hp on a 400hp engine from just an oil change.
But to stop ranting and answer your question I think all good synthetics (Mobil 1, Redline, Royal Purple, Lucas) will give you similar results.
Don't forget WallyMart's store brand synthetic for $2 a quart (they don't run expensive magazine ads or sponsor a Nascar car)....I'm at 105000 miles on my 2000 Explorer.
Synthetic oil is awesome dont get me wrong... but it has its disadvantages. I work at a Ford dealership and people always want to run synthetic oils in their vehicles. Most of the time they see an ad on TV and think it has to be better. Bottom line is most engines if they aren't switched over to syntetic oil after their break-in period will have massive blow by, and cause leaks around the bottom end. If your motor has quite a bit of run time I deff. do not recommend switching over. As fas as synthetic oils lasting longer it all depends of the application. I'm a firm believer of synthetic oils in sealed environments, like Transmissions and Rearends. I personally think buying middle grade oil and shorting your changing intervals will give you the same effect. And a good oil filter makes all the difference too.
Oil & filters in general
I agree with Chevyman85. If you want some eye opening info about your favorite oil filter, check this out:
http://minimopar.knizefamily.net/oilfilterstudy.html
On the subject of oil, that's a can of worms. However, there's been a lot of debate on the subject on a Cadillac forum that I'm a member of. Our conclusion is that with older, hard-blocked, flat tappet engines like our Cadillacc 472/500/425, oil with zinc is the way to go. That would be Rotella, Delo-400, etc.
I've been using Rotella 10-40w in both my 68' DeVille & 76' Eldorado convertibles AND the wife's 85' NA 231ci Regal for years with great results. Along with AC Delco filters, cause I'm a C.S.O.B. @ $3.00 ea.
Here's a thread about oil on the forum: http://www.cadillacpower.com/forum/index.php/topic,2077.0.html
I agree with Chevyman85. If you want some eye opening info about your favorite oil filter, check this out:
http://minimopar.knizefamily.net/oilfilterstudy.html
On the subject of oil, that's a can of worms. However, there's been a lot of debate on the subject on a Cadillac forum that I'm a member of. Our conclusion is that with older, hard-blocked, flat tappet engines like our Cadillacc 472/500/425, oil with zinc is the way to go. That would be Rotella, Delo-400, etc.
I've been using Rotella 10-40w in both my 68' DeVille & 76' Eldorado convertibles AND the wife's 85' NA 231ci Regal for years with great results. Along with AC Delco filters, cause I'm a C.S.O.B. @ $3.00 ea.
Here's a thread about oil on the forum: http://www.cadillacpower.com/forum/index.php/topic,2077.0.html
Hey theres nothing wrong with Delco filters. I run a PH-454 on my car. Its the short 350 filter that will clear my headers. Other than that I'm a big fan of Wix filters
Delco filters are OK in my book
I agree and that's why I use them. After reading that comparison, I'll NEVER use a Fram oil filter again. And for the cost of the Delco filter, it's worth it to change it every time I change the oil. :wink:
Chevyman85 said:
I agree and that's why I use them. After reading that comparison, I'll NEVER use a Fram oil filter again. And for the cost of the Delco filter, it's worth it to change it every time I change the oil. :wink:
I completly agree! I HATE Fram filters. I'll never run one of them on my car, and I dont let anyone else. They're garbage! Plus you dont save by buying a $2 oil filter! Good call on the Fram
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