the cool down period is needed if you have been running the engine hard and getting into the boost. on a normal commute you have nothing to worry about
Turbo Volvo (S60R) oil rec, plus noob help!
- Thread starter evilspoons
- Start date
- Status
Originally Posted By: hostile
Originally Posted By: deven
What he means by "proper shutdown" he means a lot of people will drive and when they get to their destination they shut off the engine whilst in a turbo you should let the engine idle after reaching destination to cool it down. One of an engine oils job is to dissipate heat. If turning it off right after reaching your destination, the turbo will actually "cook the oil" because it is no longer in circulation due to the car being shut off.
So how long should one let the car idle? I thought that idling was actually quite hard on a car, and also consumes the most gas?
Idling is bad for a car but in a turbo its beneficial to idle since it helps cool the engine, I have never owned a turbo so I'll leave that question to someone who has actually had experience with this.
Originally Posted By: deven
What he means by "proper shutdown" he means a lot of people will drive and when they get to their destination they shut off the engine whilst in a turbo you should let the engine idle after reaching destination to cool it down. One of an engine oils job is to dissipate heat. If turning it off right after reaching your destination, the turbo will actually "cook the oil" because it is no longer in circulation due to the car being shut off.
So how long should one let the car idle? I thought that idling was actually quite hard on a car, and also consumes the most gas?
Idling is bad for a car but in a turbo its beneficial to idle since it helps cool the engine, I have never owned a turbo so I'll leave that question to someone who has actually had experience with this.
I just put SSO in my turbo Pontiac, as it definitely meets the specs required for the motor.
Quote:
I'm surprised turbo timers aren't standard nowadays
Actually, the owner should check that. The car may have one already. I can't say for certain, but my Volvo 850 (also from the 90's) has a turbo timer. I can't imagine they'd take a step backwards.
One thing I will say is, most synthetic oil has worked fine, Castrol 0w30, Mobil 1 0w30, and Redline 5w30 and 5w40 have all worked well.
However, both times I tried Pennzoil Platinum 5w30 in it, I found thick foamy looking stuff on the dipstick within 500-1000 miles. I'm not sure if it was the oil or just a coincidence, but I've been afraid to try it again. Just my experience, YMMV.
Strangely, the previous owner's oil chnage receipts shows it got bulk Pennzoil 10w30 year round (that was in Florida, though). They also had it changed every 3000 miles or sooner.
I'm surprised turbo timers aren't standard nowadays
Actually, the owner should check that. The car may have one already. I can't say for certain, but my Volvo 850 (also from the 90's) has a turbo timer. I can't imagine they'd take a step backwards.
One thing I will say is, most synthetic oil has worked fine, Castrol 0w30, Mobil 1 0w30, and Redline 5w30 and 5w40 have all worked well.
However, both times I tried Pennzoil Platinum 5w30 in it, I found thick foamy looking stuff on the dipstick within 500-1000 miles. I'm not sure if it was the oil or just a coincidence, but I've been afraid to try it again. Just my experience, YMMV.
Strangely, the previous owner's oil chnage receipts shows it got bulk Pennzoil 10w30 year round (that was in Florida, though). They also had it changed every 3000 miles or sooner.
Originally Posted By: hostile
Originally Posted By: deven
What he means by "proper shutdown" he means a lot of people will drive and when they get to their destination they shut off the engine whilst in a turbo you should let the engine idle after reaching destination to cool it down. One of an engine oils job is to dissipate heat. If turning it off right after reaching your destination, the turbo will actually "cook the oil" because it is no longer in circulation due to the car being shut off.
So how long should one let the car idle? I thought that idling was actually quite hard on a car, and also consumes the most gas?
We're not talking a long time... Most people I know with turbo cars that never had any issues (including volvos) are talking like 15-30 seconds. Some people do more.. Whatever floats their boat.
Originally Posted By: deven
What he means by "proper shutdown" he means a lot of people will drive and when they get to their destination they shut off the engine whilst in a turbo you should let the engine idle after reaching destination to cool it down. One of an engine oils job is to dissipate heat. If turning it off right after reaching your destination, the turbo will actually "cook the oil" because it is no longer in circulation due to the car being shut off.
So how long should one let the car idle? I thought that idling was actually quite hard on a car, and also consumes the most gas?
We're not talking a long time... Most people I know with turbo cars that never had any issues (including volvos) are talking like 15-30 seconds. Some people do more.. Whatever floats their boat.
After quite a bit of research into this, a cool down time is *not* required on these engines.
The turbos on the v70/xc70 are low boost, and do not run hot enough to warrant any cool down time.
The low boost, combined with good synthetics, allow for this engine to be driven like any other. There is apparently no risk of coking the turbo in these.
Thanks for the replies though!
The turbos on the v70/xc70 are low boost, and do not run hot enough to warrant any cool down time.
The low boost, combined with good synthetics, allow for this engine to be driven like any other. There is apparently no risk of coking the turbo in these.
Thanks for the replies though!
- Status
