10W30 all year round in warm/cold climate?

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Someone

I used to use Mobil One 5/30 and 10W30 in my 93 240 and do oil change
every 6 months.

I recently bought Mobil Extended Performance (good up to 120,000 [km
or miles?] ) and was wondering if I could do an oil change only once a
year? I do about 10K miles/year. Climate can be down to -30C (~ 0F)
in winter and up to 40C (~110F) in summer.

Or should I stick to my twice a year 5W/30, 10W30 oil changes?

Thanks
 
Someone said:
I used to use Mobil One 5/30 and 10W30 in my 93 240 and do oil change
every 6 months.

I recently bought Mobil Extended Performance (good up to 120,000 [km
or miles?] ) and was wondering if I could do an oil change only once a
year? I do about 10K miles/year. Climate can be down to -30C (~ 0F)
in winter and up to 40C (~110F) in summer.

Or should I stick to my twice a year 5W/30, 10W30 oil changes?

Thanks

Seasonal oil viscosity changes are an ancient relic. Once multiweight oils
came out, they became unnecessary in all but the most extreme climates. Run
10W30 year round and you will have no trouble. You're not trying to crank a
big V8 from a 6V battery, the starter in a 240 produces ample torque to turn
the motor over in just about any weather.
 
Someone said:
I used to use Mobil One 5/30 and 10W30 in my 93 240 and do oil change
every 6 months.

Sufficient every 12 months. In Europe oil changes are done every year or
20000-40000km depending on th manufacturer of the car.
I recently bought Mobil Extended Performance (good up to 120,000 [km
or miles?] ) and was wondering if I could do an oil change only once a
year? I do about 10K miles/year. Climate can be down to -30C (~ 0F)
in winter and up to 40C (~110F) in summer.

Mobil 1 is good for all year use within these parameters.
Or should I stick to my twice a year 5W/30, 10W30 oil changes?

Don't waste money!

Your welcome!
 
I used to use Mobil One 5/30 and 10W30 in my 93 240 and do oil change
every 6 months.  

I recently bought Mobil Extended Performance (good up to 120,000 [km
or miles?] ) and was wondering if I could do an oil change only once a
year?  I do about 10K miles/year.  Climate can be down to -30C (~ 0F)
in winter and up to 40C (~110F) in summer.

Or should I stick to my twice a year 5W/30, 10W30 oil changes?

Thanks

Do the following three things:

1. Locate or buy an owners manual for that car.
2. Open it to the section dealing with oil changes.
3. Read and follow the guidance in that section. It will be far more
accurate than information gotten in discussion groups.
 
Thanks to all for you input. I do have the owner's manual for the car
and I followed what it says. But this being a 1993, I figured there
must have been improvement in engine oil fabrication over the last 15
years and since I don't do much mileage, maybe I can relax my twice a
year 5w30, 10W30 oil changes.

I like the suggestion of keeping 10W30 oil all year round in my second
Volvo which I only use 2-5 times per winter. On that one, every time
I do an oil change in the spring, the oil looks exactly like the oil I
added in the fall.
 
Someone said:
Thanks to all for you input. I do have the owner's manual for the car
and I followed what it says. But this being a 1993, I figured there
must have been improvement in engine oil fabrication over the last 15
years and since I don't do much mileage, maybe I can relax my twice a
year 5w30, 10W30 oil changes.

I like the suggestion of keeping 10W30 oil all year round in my second
Volvo which I only use 2-5 times per winter. On that one, every time
I do an oil change in the spring, the oil looks exactly like the oil I
added in the fall.


I use regular 10W30 in the non-turbo Volvo year round, it doesn't get quite
as cold here as you mentioned, but I've never had any trouble at all one way
or another. I change it every 5K miles and it's looking pretty yucky by
then. Car has just shy of 300K on it and the motor has been holding up
great.
 
Someone said:
I used to use Mobil One 5/30 and 10W30 in my 93 240 and do oil change
every 6 months.

I recently bought Mobil Extended Performance (good up to 120,000 [km
or miles?] ) and was wondering if I could do an oil change only once a
year? I do about 10K miles/year. Climate can be down to -30C (~ 0F)
in winter and up to 40C (~110F) in summer.

Mobil-1 EP 5W-30 will do a fine job of lubricating your Volvo year
round. No need to use 10W-30 in the summer or winter.
 
Roadie said:
Do the following three things:

1. Locate or buy an owners manual for that car.
2. Open it to the section dealing with oil changes.
3. Read and follow the guidance in that section. It will be far more
accurate than information gotten in discussion groups.

Well Roadie, you are wrong. The manual in question was written 15 years
ago and automotive lubricants have moved forward quite a lot in that time.
 
Someone said:
Thanks to all for you input. I do have the owner's manual for the car
and I followed what it says. But this being a 1993, I figured there
must have been improvement in engine oil fabrication over the last 15
years and since I don't do much mileage, maybe I can relax my twice a
year 5w30, 10W30 oil changes.

I like the suggestion of keeping 10W30 oil all year round in my second
Volvo which I only use 2-5 times per winter. On that one, every time
I do an oil change in the spring, the oil looks exactly like the oil I
added in the fall.


10W-30 will work fine, but 5W-30 will work better. Mobil-1 EP is an
excellent quality oil which is going to hold it's viscosity fine.

The 5W simply means an oil with better low temperature cranking
characteristics. Once hot, the 5W-30 and 10W-30 oils have approximately
the same viscosity.
 
What a temperature range .We can only get 10-30 ,10-40 5-50 Mobil 1 here
DOWN UNDER .
John Horner said:
Someone said:
I used to use Mobil One 5/30 and 10W30 in my 93 240 and do oil change
every 6 months. I recently bought Mobil Extended Performance (good up to
120,000 [km
or miles?] ) and was wondering if I could do an oil change only once a
year? I do about 10K miles/year. Climate can be down to -30C (~ 0F)
in winter and up to 40C (~110F) in summer.

Mobil-1 EP 5W-30 will do a fine job of lubricating your Volvo year round.
No need to use 10W-30 in the summer or winter.
 
Well Roadie, you are wrong.  The manual in question was written 15 years
ago and automotive lubricants have moved forward quite a lot in that time.

He would do better to follow those directions OR to ask the dealer for
Volvo's current recommended oil for older motors than to follow the
guesses that have come forth so far on this forum.
 
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