mobile 1 extended performance
02-08-12, 11:23 PM
#4
My family and I have been using Mobil 1 EP on the majority of our vehicles, and it performs quite well. Though it says it can last 15k, we usually try to change it every 8-10k. Of course, testing your oil is the best way to see how long you can go without changing your oil at http://www.blackstone-labs.com/. Though it costs $25 for an analysis, the results will give you a more pronounced timeframe in terms of mileage for your oil change interval.
02-09-12, 07:00 AM
#7
mobil 1 has cheapened their products of late to be more competitive (their synthetic has lost a racing designation). As long as you change your oil every 5K kilometers you are good to use conventional. If that's too often for you then run synthetic and change every 10K (again km eh?). It's more the filter that needs to be changed than the oil.
if you really want to be technical, best way to know for how you drive and the environment you're driving in is a UOA.
edit: btw, my last car used conventional and it lasted me 17 years. Engine was good as new but the body was starting to rust out. Maybe it's overkill, but it's my car and if I don't care to squeeze every last ounce of mileage out of my oil, then it's my business. Regular oil changes are the most effective way to prolong the life of your car's engine.
if you really want to be technical, best way to know for how you drive and the environment you're driving in is a UOA.
edit: btw, my last car used conventional and it lasted me 17 years. Engine was good as new but the body was starting to rust out. Maybe it's overkill, but it's my car and if I don't care to squeeze every last ounce of mileage out of my oil, then it's my business. Regular oil changes are the most effective way to prolong the life of your car's engine.
Last edited by embolism; 02-09-12 at 08:23 AM.
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02-09-12, 07:52 AM
#8
UOA is always the best way to be sure.
That said, and having seen a lot of UOAs on 2ISes on here over the years, I find the following to generally be true:
For normal, non severe-duty driving:
You can safely go 7500-10,000 miles on even conventional oil in the 2IS, on a single OEM filter. I've never seen a UOA in that range, regardless of oil used, that was bad.
In fact the only bad UOAs I've seen at all were a few folks who pushed their OEM filters past 12k miles or so.
So I'd suspect any decent synthetic will be fine to 15k miles but you'd want to swap your filter out at 7500.
A really good synthetic, Amsoil for example, I imagine you'd have no issue running to 20,000 miles with a filter change at 10k.
Also, there's a TRD synthetic media filter that might enable longer filter change intervals... but I don't believe anyone has tested this yet.... if it's comparable to the life that, say, the amsoil synthetic filters offer on other cars (they don't make a 2IS one) you'd be able to run 15-20k easily on a single filter with that.
Anybody doing normal driving and changing their oil, of any kind, at 5,000 km (doubly so changing synthetic at 10,000 km) , is literally pouring money down a drain.
That said, and having seen a lot of UOAs on 2ISes on here over the years, I find the following to generally be true:
For normal, non severe-duty driving:
You can safely go 7500-10,000 miles on even conventional oil in the 2IS, on a single OEM filter. I've never seen a UOA in that range, regardless of oil used, that was bad.
In fact the only bad UOAs I've seen at all were a few folks who pushed their OEM filters past 12k miles or so.
So I'd suspect any decent synthetic will be fine to 15k miles but you'd want to swap your filter out at 7500.
A really good synthetic, Amsoil for example, I imagine you'd have no issue running to 20,000 miles with a filter change at 10k.
Also, there's a TRD synthetic media filter that might enable longer filter change intervals... but I don't believe anyone has tested this yet.... if it's comparable to the life that, say, the amsoil synthetic filters offer on other cars (they don't make a 2IS one) you'd be able to run 15-20k easily on a single filter with that.
Anybody doing normal driving and changing their oil, of any kind, at 5,000 km (doubly so changing synthetic at 10,000 km) , is literally pouring money down a drain.
just to be on the safe side, I can't drive a car 10K miles on the same oil..just doesn't feel right lol
02-09-12, 09:55 AM
#10
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So for regular Mobile 1 fully synthetic...will going 10K before a change be a waste? Using OEM oil filter.
That has been my routine only because I feel the oil has been there for awhile (usually takes me about a year to get to 10K).
That has been my routine only because I feel the oil has been there for awhile (usually takes me about a year to get to 10K).
02-09-12, 10:32 AM
#11
You could probably (virtually certainly) get longer from the oil, but as I said probably not too much more from the filter.
If you were willing to check via UOAs you'd probably be ok to 15-16k on the oil with a 7500-8000 mile filter change for example.
02-09-12, 12:34 PM
#14
I use regular Mob1 synthetic. My car has ~52K miles now. I change oil every 10K and filter every 5K. Running oil around 10K is neither stretching or wasting. Engine is running strong as ever.
02-09-12, 04:07 PM
#15
It's a waste of Mobil 1 Extended Performance if your doing it every 5k.
I would just stick with the regular Mobil 1 Synthetic if your going to change every 5k and want to run a synthetic oil, that or just regular conventional oil is proven to last 5k without issues.