* Dollar index hits 8-mth low
* China manufacturing gathers steam in September
* Coming Up: U.S. Sept ISM; 1400 GMT
(Recasts, updates prices)
By Marie-Louise Gumuchian
LONDON, Oct 1 (Reuters) - Oil rose on Friday to above $81, a seven-week high, boosted by a weaker dollar and stronger-than-expected Chinese economic data which raised prospects of demand recovery in one of the largest consumers.
U.S. crude for November <CLc1> was up $1.26 at $81.23 a barrel at 1300 GMT, having hit $81.40, its highest level since around mid-August. ICE Brent <LCOc1> for November was up $1.14 at $83.45 a barrel.
"The main driver has been the euro with a lot of bullish news back behind it," Rob Montefusco, a trader at Sucden Financial, said.
The dollar accelerated losses against the euro on Friday after New York Federal Reserve Bank President William Dudley said more Fed action is warranted unless the U.S. economic outlook improves. [
]A weaker dollar increases the purchasing power of non-U.S. dollar currency holders.
Data showed U.S. consumer spending rose slightly more than expected in August, but inflation remained subdued. [
]In China, the country's manufacturing sector gathered momentum last month, the official purchasing managers index (PMI) showed, providing further evidence that an important engine of global growth is humming again after sputtering in the second quarter. [
]"(The data is) indicating that we've had no slowdown in recent economic activity so that's very supportive, because China is the main source of growth for oil demand in the foreseeable future," Christophe Barret, oil analyst at Credit Agricole, said.
China's financial markets are closed for a week from Oct. 1 to 7 for the National Day holiday.
UPWARD PRESSURE
In oil producer Nigeria, eight people were killed and three injured in car bomb explosions that hit the capital near a parade marking the 50th anniversary of independence, police said. [
]In France, a strike at a top oil port that has squeezed supplies to refineries entered a fifth day on Friday, with unions aiming to escalate protests with a call for a national stoppage at all French ports. [
]Meanwhile, officials said Indonesia's crude oil production has been cut by 150,000 barrels per day (bpd) after a gas pipeline leak that will take three days to fix, cutting output from Chevron's <CVX.N> Minas and Duri fields. [
]The International Energy Agency, which advises industrialised nations on energy policy, said on Friday it sees upward pressure on oil prices in the second half of 2011 due to a projected decline in oil stocks. [
]Oil prices have remained relatively stable so far this year, trading two-thirds of 2010 at between $70 and $80 per barrel, a range that oil producers in the Organization of the Petroleum Exporting Countries have said they favour.
"In the short term ... probably yes (price above $80 is sustainable) given bullish market environment momentum, a weaker dollar, technicals and the latest economic news from China," Carsten Fristch at Commerzbank said.
"But in the mid to long term, meaning next month or so, probably not as the fundamentals don't justify prices beyond $80 at the moment. They haven't really changed only market sentiment has changed." (Additional reporting by Florence Tan in Singapore; editing by James Jukwey)